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CWE-834

Excessive Iteration

ClassIncompleteSimple109 CVEs
The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.

Extended description

If the iteration can be influenced by an attacker, this weakness could allow attackers to consume excessive resources such as CPU or memory. In many cases, a loop does not need to be infinite in order to cause enough resource consumption to adversely affect the product or its host system; it depends on the amount of resources consumed per iteration.

Common consequences1

  • AvailabilityDoS: Resource Consumption (CPU)DoS: Resource Consumption (Memory)DoS: AmplificationDoS: Crash, Exit, or Restart

    Excessive looping will cause unexpected consumption of resources, such as CPU cycles or memory. The product's operation may slow down, or cause a long time to respond. If limited resources such as memory are consumed for each iteration, the loop may eventually cause a crash or program exit due to exhaustion of resources, such as an out-of-memory error.

Relationships1

CVEs referencing this CWE109

CVEDescriptionSeverityEPSSFlagsModified
CVE-2021-35515

When reading a specially crafted 7Z archive, the construction of the list of codecs that decompress an entry can result in an infinite loop. This could be used to mount a denial of service attack against services that use Compress' sevenz package.

HIGH7.5
12%p96
2024-11-21
CVE-2021-39924

Large loop in the Bluetooth DHT dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

HIGH7.5
4.93%p91
2024-11-21
CVE-2023-1993

LISP dissector large loop in Wireshark 4.0.0 to 4.0.4 and 3.6.0 to 3.6.12 allows denial of service via packet injection or crafted capture file

MEDIUM6.5
4.10%p89
2025-11-03
CVE-2018-14342

In Wireshark 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15, the BGP protocol dissector could go into a large loop. This was addressed in epan/dissectors/packet-bgp.c by validating Path Attribute lengths.

NONE
3.67%p88
2024-11-21
CVE-2020-14303

A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash.

HIGH7.5
3.54%p88
2024-11-21
CVE-2018-9133

ImageMagick 7.0.7-26 Q16 has excessive iteration in the DecodeLabImage and EncodeLabImage functions (coders/tiff.c), which results in a hang (tens of minutes) with a tiny PoC file. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tiff file.

NONE
3.28%p87
2024-11-21
CVE-2018-11813

libjpeg 9c has a large loop because read_pixel in rdtarga.c mishandles EOF.

NONE
3.16%p86
2024-11-21
CVE-2021-4190

Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file

HIGH7.5
3.10%p86
2025-11-03
CVE-2021-31812

In Apache PDFBox, a carefully crafted PDF file can trigger an infinite loop while loading the file. This issue affects Apache PDFBox version 2.0.23 and prior 2.0.x versions.

MEDIUM5.5
3.05%p86
2024-11-21
CVE-2021-27807

A carefully crafted PDF file can trigger an infinite loop while loading the file. This issue affects Apache PDFBox version 2.0.22 and prior 2.0.x versions.

MEDIUM5.5
2.98%p86
2025-02-13
CVE-2018-9261

In Wireshark 2.4.0 to 2.4.5 and 2.2.0 to 2.2.13, the NBAP dissector could crash with a large loop that ends with a heap-based buffer overflow. This was addressed in epan/dissectors/packet-nbap.c by prohibiting the self-linking of DCH-IDs.

NONE
2.94%p85
2024-11-21
CVE-2019-3565

Legacy C++ Facebook Thrift servers (using cpp instead of cpp2) would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.05.06.00.

HIGH7.5
2.81%p85
2024-11-21
CVE-2020-35573

srs2.c in PostSRSd before 1.10 allows remote attackers to cause a denial of service (CPU consumption) via a long timestamp tag in an SRS address.

HIGH7.5
2.66%p84
2024-11-21
CVE-2019-12973

In OpenJPEG 2.3.1, there is excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file. This issue is similar to CVE-2018-6616.

MEDIUM5.5
2.62%p83
2024-11-21
CVE-2023-3817

Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter value can also trigger an overly long computation during some of these checks. A correct q value, if present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications when using the "-check" option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.

MEDIUM5.3
2.58%p83
2025-05-05
CVE-2020-25201

HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.

HIGH7.5
2.58%p83
2024-11-21
CVE-2018-7323

In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-wccp.c had a large loop that was addressed by ensuring that a calculated length was monotonically increasing.

NONE
2.52%p83
2024-11-21
CVE-2017-14222

In libavformat/mov.c in FFmpeg 3.3.3, a DoS in read_tfra() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted MOV file, which claims a large "item_count" field in the header but does not contain sufficient backing data, is provided, the loop would consume huge CPU and memory resources, since there is no EOF check inside the loop.

NONE
2.40%p82
2026-05-13
CVE-2022-0585

Large loops in multiple protocol dissectors in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allow denial of service via packet injection or crafted capture file

MEDIUM6.5
2.37%p82
2025-11-03
CVE-2017-13776

GraphicsMagick 1.3.26 has a denial of service issue in ReadXBMImage() in a coders/xbm.c "Read hex image data" version!=10 case that results in the reader not returning; it would cause large amounts of CPU and memory consumption although the crafted file itself does not request it.

NONE
2.37%p82
2026-05-13
CVE-2017-11505

The ReadOneJNGImage function in coders/png.c in ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a malformed JNG file.

NONE
2.26%p81
2026-05-13
CVE-2017-11409

In Wireshark 2.0.0 to 2.0.13, the GPRS LLC dissector could go into a large loop. This was addressed in epan/dissectors/packet-gprs-llc.c by using a different integer data type.

NONE
2.26%p81
2026-05-13
CVE-2017-14174

In coders/psd.c in ImageMagick 7.0.7-0 Q16, a DoS in ReadPSDLayersInternal() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted PSD file, which claims a large "length" field in the header but does not contain sufficient backing data, is provided, the loop over "length" would consume huge CPU resources, since there is no EOF check inside the loop.

MEDIUM6.5
2.25%p81
2026-05-13
CVE-2017-14172

In coders/ps.c in ImageMagick 7.0.7-0 Q16, a DoS in ReadPSImage() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted PSD file, which claims a large "extent" field in the header but does not contain sufficient backing data, is provided, the loop over "length" would consume huge CPU resources, since there is no EOF check inside the loop.

MEDIUM6.5
2.19%p80
2026-05-13
CVE-2021-3128

In ASUS RT-AX3000, ZenWiFi AX (XT8), RT-AX88U, and other ASUS routers with firmware < 3.0.0.4.386.42095 or < 9.0.0.4.386.41994, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set.

HIGH7.5
2.18%p80
2024-11-21
CVE-2017-13777

GraphicsMagick 1.3.26 has a denial of service issue in ReadXBMImage() in a coders/xbm.c "Read hex image data" version==10 case that results in the reader not returning; it would cause large amounts of CPU and memory consumption although the crafted file itself does not request it.

NONE
2.13%p80
2026-05-13
CVE-2017-14175

In coders/xbm.c in ImageMagick 7.0.6-1 Q16, a DoS in ReadXBMImage() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted XBM file, which claims large rows and columns fields in the header but does not contain sufficient backing data, is provided, the loop over the rows would consume huge CPU resources, since there is no EOF check inside the loop.

MEDIUM6.5
2.12%p79
2026-05-13
CVE-2017-17914

In ImageMagick 7.0.7-16 Q16, a vulnerability was found in the function ReadOnePNGImage in coders/png.c, which allows attackers to cause a denial of service (ReadOneMNGImage large loop) via a crafted mng image file.

NONE
2.03%p79
2026-05-13
CVE-2017-12587

ImageMagick 7.0.6-1 has a large loop vulnerability in the ReadPWPImage function in coders\pwp.c.

NONE
2.03%p79
2026-05-13
CVE-2019-3558

Python Facebook Thrift servers would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.02.18.00.

HIGH7.5
2.02%p78
2024-11-21
CVE-2019-3564

Go Facebook Thrift servers would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.03.04.00.

HIGH7.5
1.99%p78
2024-11-21
CVE-2019-3559

Java Facebook Thrift servers would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.02.18.00.

HIGH7.5
1.99%p78
2024-11-21
CVE-2019-3552

C++ Facebook Thrift servers (using cpp2) would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.02.18.00.

HIGH7.5
1.98%p78
2024-11-21
CVE-2017-14055

In libavformat/mvdec.c in FFmpeg 3.3.3, a DoS in mv_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted MV file, which claims a large "nb_frames" field in the header but does not contain sufficient backing data, is provided, the loop over the frames would consume huge CPU and memory resources, since there is no EOF check inside the loop.

NONE
1.82%p76
2026-05-13
CVE-2017-14056

In libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted RL2 file, which claims a large "frame_count" field in the header but does not contain sufficient backing data, is provided, the loops (for offset and size tables) would consume huge CPU and memory resources, since there is no EOF check inside these loops.

NONE
1.82%p76
2026-05-13
CVE-2017-14057

In FFmpeg 3.3.3, a DoS in asf_read_marker() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted ASF file, which claims a large "name_len" or "count" field in the header but does not contain sufficient backing data, is provided, the loops over the name and markers would consume huge CPU and memory resources, since there is no EOF check inside these loops.

NONE
1.81%p76
2026-05-13
CVE-2017-14059

In FFmpeg 3.3.3, a DoS in cine_read_header() due to lack of an EOF check might cause huge CPU and memory consumption. When a crafted CINE file, which claims a large "duration" field in the header but does not contain sufficient backing data, is provided, the image-offset parsing loop would consume huge CPU and memory resources, since there is no EOF check inside the loop.

NONE
1.78%p75
2026-05-13
CVE-2017-14170

In libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, a DoS in mxf_read_index_entry_array() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted MXF file, which claims a large "nb_index_entries" field in the header but does not contain sufficient backing data, is provided, the loop would consume huge CPU resources, since there is no EOF check inside the loop. Moreover, this big loop can be invoked multiple times if there is more than one applicable data segment in the crafted MXF file.

NONE
1.77%p75
2026-05-13
CVE-2017-14171

In libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3, a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted NSV file, which claims a large "table_entries_used" field in the header but does not contain sufficient backing data, is provided, the loop over 'table_entries_used' would consume huge CPU resources, since there is no EOF check inside the loop.

NONE
1.77%p75
2026-05-13
CVE-2017-14054

In libavformat/rmdec.c in FFmpeg 3.3.3, a DoS in ivr_read_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted IVR file, which claims a large "len" field in the header but does not contain sufficient backing data, is provided, the first type==4 loop would consume huge CPU resources, since there is no EOF check inside the loop.

NONE
1.73%p75
2026-05-13
CVE-2018-7321

In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-thrift.c had a large loop that was addressed by not proceeding with dissection after encountering an unexpected type.

NONE
1.72%p75
2024-11-21
CVE-2017-12674

In ImageMagick 7.0.6-2, a CPU exhaustion vulnerability was found in the function ReadPDBImage in coders/pdb.c, which allows attackers to cause a denial of service.

NONE
1.63%p73
2026-05-13
CVE-2021-39204

Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead to high CPU utilization when a large number of streams are reset. This can result in a DoS condition. Pomerium versions 0.14.8 and 0.15.1 contain an upgraded envoy binary with this vulnerability patched.

HIGH7.5
1.61%p73
2024-11-21
CVE-2021-43545

Using the Location API in a loop could have caused severe application hangs and crashes. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

MEDIUM6.5
1.60%p73
2024-11-21
CVE-2017-11188

The ReadDPXImage function in coders\dpx.c in ImageMagick 7.0.6-0 has a large loop vulnerability that can cause CPU exhaustion via a crafted DPX file, related to lack of an EOF check.

NONE
1.55%p72
2026-05-13
CVE-2021-39923

Large loop in the PNRP dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

HIGH7.5
1.52%p71
2024-11-21
CVE-2021-3125

In TP-Link TL-XDR3230 < 1.0.12, TL-XDR1850 < 1.0.9, TL-XDR1860 < 1.0.14, TL-XDR3250 < 1.0.2, TL-XDR6060 Turbo < 1.1.8, TL-XDR5430 < 1.0.11, and possibly others, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set.

HIGH7.5
1.50%p71
2024-11-21
CVE-2019-9547

In Storage Performance Development Kit (SPDK) before 19.01, a malicious vhost client (i.e., virtual machine) could carefully construct a circular descriptor chain that would result in a partial denial of service in the SPDK vhost target, because the vhost target did not properly detect such chains.

NONE
1.50%p71
2024-11-21
CVE-2023-26513

Excessive Iteration vulnerability in Apache Software Foundation Apache Sling Resource Merger.This issue affects Apache Sling Resource Merger: from 1.2.0 before 1.4.2.

HIGH7.5
1.46%p70
2025-02-13
CVE-2021-32778

Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions envoy’s procedure for resetting a HTTP/2 stream has O(N^2) complexity, leading to high CPU utilization when a large number of streams are reset. Deployments are susceptible to Denial of Service when Envoy is configured with high limit on H/2 concurrent streams. An attacker wishing to exploit this vulnerability would require a client opening and closing a large number of H/2 streams. Envoy versions 1.19.1, 1.18.4, 1.17.4, 1.16.5 contain fixes to reduce time complexity of resetting HTTP/2 streams. As a workaround users may limit the number of simultaneous HTTP/2 dreams for upstream and downstream peers to a low number, i.e. 100.

HIGH7.5
1.23%p65
2024-11-21
CVE-2018-20805

A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries, which perform an $elemMatch . This issue affects MongoDB Server v4.0 versions prior to 4.0.5 and MongoDB Server v3.6 versions prior to 3.6.10.

MEDIUM6.5
1.23%p65
2024-11-21
CVE-2018-11507

An issue was discovered in Free Lossless Image Format (FLIF) 0.3. An attacker can trigger a long loop in image_load_pnm in image/image-pnm.cpp.

NONE
1.15%p63
2024-11-21
CVE-2023-38200

A flaw was found in Keylime. Due to their blocking nature, the Keylime registrar is subject to a remote denial of service against its SSL connections. This flaw allows an attacker to exhaust all available connections.

HIGH7.5
1.14%p62
2025-11-20
CVE-2024-4603

Issue summary: Checking excessively long DSA keys or parameters may be very slow. Impact summary: Applications that use the functions EVP_PKEY_param_check() or EVP_PKEY_public_check() to check a DSA public key or DSA parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The functions EVP_PKEY_param_check() or EVP_PKEY_public_check() perform various checks on DSA parameters. Some of those computations take a long time if the modulus (`p` parameter) is too large. Trying to use a very large modulus is slow and OpenSSL will not allow using public keys with a modulus which is over 10,000 bits in length for signature verification. However the key and parameter check functions do not limit the modulus size when performing the checks. An application that calls EVP_PKEY_param_check() or EVP_PKEY_public_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. These functions are not called by OpenSSL itself on untrusted DSA keys so only applications that directly call these functions may be vulnerable. Also vulnerable are the OpenSSL pkey and pkeyparam command line applications when using the `-check` option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.

MEDIUM5.3
1.13%p62
2026-04-15
CVE-2022-36083

JOSE is "JSON Web Almost Everything" - JWA, JWS, JWE, JWT, JWK, JWKS with no dependencies using runtime's native crypto in Node.js, Browser, Cloudflare Workers, Electron, and Deno. The PBKDF2-based JWE key management algorithms expect a JOSE Header Parameter named `p2c` PBES2 Count, which determines how many PBKDF2 iterations must be executed in order to derive a CEK wrapping key. The purpose of this parameter is to intentionally slow down the key derivation function in order to make password brute-force and dictionary attacks more expensive. This makes the PBES2 algorithms unsuitable for situations where the JWE is coming from an untrusted source: an adversary can intentionally pick an extremely high PBES2 Count value, that will initiate a CPU-bound computation that may take an unreasonable amount of time to finish. Under certain conditions, it is possible to have the user's environment consume unreasonable amount of CPU time. The impact is limited only to users utilizing the JWE decryption APIs with symmetric secrets to decrypt JWEs from untrusted parties who do not limit the accepted JWE Key Management Algorithms (`alg` Header Parameter) using the `keyManagementAlgorithms` (or `algorithms` in v1.x) decryption option or through other means. The `v1.28.2`, `v2.0.6`, `v3.20.4`, and `v4.9.2` releases limit the maximum PBKDF2 iteration count to `10000` by default. It is possible to adjust this limit with a newly introduced `maxPBES2Count` decryption option. If users are unable to upgrade their required library version, they have two options depending on whether they expect to receive JWEs using any of the three PBKDF2-based JWE key management algorithms. They can use the `keyManagementAlgorithms` decryption option to disable accepting PBKDF2 altogether, or they can inspect the JOSE Header prior to using the decryption API and limit the PBKDF2 iteration count (`p2c` Header Parameter).

MEDIUM5.3
1.05%p60
2025-04-22
CVE-2021-23270

In Gargoyle OS 1.12.0, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set.

HIGH7.5
1.03%p59
2024-11-21
CVE-2021-4021

A vulnerability was found in Radare2 in versions prior to 5.6.2, 5.6.0, 5.5.4 and 5.5.2. Mapping a huge section filled with zeros of an ELF64 binary for MIPS architecture can lead to uncontrolled resource consumption and DoS.

HIGH7.5
1.02%p59
2024-11-21
CVE-2024-0842

The Backuply – Backup, Restore, Migrate and Clone plugin for WordPress is vulnerable to Denial of Service in all versions up to, and including, 1.2.6. This is due to direct access of the backuply/restore_ins.php file and. This makes it possible for unauthenticated attackers to make excessive requests that result in the server running out of resources.

HIGH7.5
0.96%p57
2026-04-08
CVE-2017-11549

The play_midi function in playmidi.c in TiMidity++ 2.14.0 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a crafted mid file. NOTE: CPU consumption might be relevant when using the --background option.

NONE
0.96%p57
2026-05-13
CVE-2017-9253

The mp4ff_read_stsd function in common/mp4ff/mp4atom.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.7 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a crafted mp4 file.

NONE
0.96%p57
2026-05-13
CVE-2017-9256

The mp4ff_read_stco function in common/mp4ff/mp4atom.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.7 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a crafted mp4 file.

NONE
0.96%p57
2026-05-13
CVE-2017-9255

The mp4ff_read_stsc function in common/mp4ff/mp4atom.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.7 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a crafted mp4 file.

NONE
0.96%p57
2026-05-13
CVE-2017-9254

The mp4ff_read_stts function in common/mp4ff/mp4atom.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.7 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a crafted mp4 file.

NONE
0.96%p57
2026-05-13
CVE-2017-9257

The mp4ff_read_ctts function in common/mp4ff/mp4atom.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.7 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a crafted mp4 file.

NONE
0.96%p57
2026-05-13
CVE-2021-21565

Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.

MEDIUM5.3
0.95%p56
2026-02-20
CVE-2017-11360

The ReadRLEImage function in coders\rle.c in ImageMagick 7.0.6-1 has a large loop vulnerability via a crafted rle file that triggers a huge number_pixels value.

NONE
0.94%p56
2026-05-13
CVE-2018-18651

An issue was discovered in Xpdf 4.00. catalog->getNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.

NONE
0.92%p56
2024-11-21
CVE-2023-0411

Excessive loops in multiple dissectors in Wireshark 4.0.0 to 4.0.2 and 3.6.0 to 3.6.10 and allows denial of service via packet injection or crafted capture file

MEDIUM6.5
0.89%p55
2025-11-03
CVE-2018-5252

libimageworsener.a in ImageWorsener 1.3.2, when libjpeg 8d is used, has a large loop in the get_raw_sample_int function in imagew-main.c.

NONE
0.89%p55
2024-11-21
CVE-2023-29407

A maliciously-crafted image can cause excessive CPU consumption in decoding. A tiled image with a height of 0 and a very large width can cause excessive CPU consumption, despite the image size (width * height) appearing to be zero.

MEDIUM6.5
0.81%p52
2025-02-13
CVE-2023-49316

In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.

HIGH7.5
0.76%p50
2026-05-08
CVE-2023-4043

In Eclipse Parsson before versions 1.1.4 and 1.0.5, Parsing JSON from untrusted sources can lead malicious actors to exploit the fact that the built-in support for parsing numbers with large scale in Java has a number of edge cases where the input text of a number can lead to much larger processing time than one would expect. To mitigate the risk, parsson put in place a size limit for the numbers as well as their scale.

HIGH7.5
0.76%p51
2024-11-21
CVE-2020-0171

In Parse_lart of eas_mdls.c, there is possible resource exhaustion due to a missing bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-127313223

MEDIUM6.5
0.76%p50
2024-11-21
CVE-2020-0172

In Parse_art of eas_mdls.c, there is possible resource exhaustion due to a missing bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-127312550

MEDIUM6.5
0.76%p50
2024-11-21
CVE-2020-0174

In Parse_ptbl of eas_mdls.c, there is possible resource exhaustion due to a missing bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-127313537

MEDIUM6.5
0.76%p50
2024-11-21
CVE-2020-0169

In RTTTL_Event of eas_rtttl.c, there is possible resource exhaustion due to a missing bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-123700383

MEDIUM6.5
0.75%p50
2024-11-21
CVE-2020-0170

In IMY_Event of eas_imelody.c, there is possible resource exhaustion due to a missing bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-127310810

MEDIUM6.5
0.75%p50
2024-11-21
CVE-2020-0175

In XMF_ReadNode of eas_xmf.c, there is possible resource exhaustion due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-126380818

MEDIUM6.5
0.75%p50
2024-11-21
CVE-2024-4227

In Genivia gSOAP with a specific configuration an unauthenticated remote attacker can generate a high CPU load when forcing to parse an XML having duplicate ID attributes which can lead to a DoS.

HIGH7.5
0.69%p48
2026-04-15
CVE-2023-5632

In Eclipse Mosquito before and including 2.0.5, establishing a connection to the mosquitto server without sending data causes the EPOLLOUT event to be added, which results excessive CPU consumption. This could be used by a malicious actor to perform denial of service type attack. This issue is fixed in 2.0.6

HIGH7.5
0.69%p48
2025-06-25
CVE-2024-25144

The IFrame widget in Liferay Portal 7.2.0 through 7.4.3.26, and older unsupported versions, and Liferay DXP 7.4 before update 27, 7.3 before update 6, 7.2 before fix pack 19, and older unsupported versions does not check the URL of the IFrame, which allows remote authenticated users to cause a denial-of-service (DoS) via a self referencing IFrame.

MEDIUM6.5
0.57%p43
2025-05-13
CVE-2017-13279

In M3UParser::parse of M3UParser.cpp, there is a memory resource exhaustion due to a large loop of pushing items into a vector. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0, 8.1. Android ID: A-68399439.

NONE
0.54%p41
2024-11-21
CVE-2026-34043

Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.

HIGH7.5
0.47%p37
2026-05-21
CVE-2020-8992

ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service (soft lockup) via a crafted journal size.

MEDIUM5.5
0.42%p33
2024-11-21
CVE-2025-56571

Finance.js v4.1.0 contains a Denial of Service (DoS) vulnerability via the IRR function’s depth parameter. Improper handling of the recursion/iteration limit can lead to excessive CPU usage, causing application stalls or crashes.

HIGH7.5
0.41%p32
2025-10-08
CVE-2024-8049

In Progress Telerik Document Processing Libraries, versions prior to 2024 Q4 (2024.4.1106), importing a document with unsupported features can lead to excessive processing, leading to excessive use of computing resources leaving the application process unavailable.

MEDIUM6.5
0.41%p33
2024-11-18
CVE-2023-33953

gRPC contains a vulnerability that allows hpack table accounting errors could lead to unwanted disconnects between clients and servers in exceptional cases/ Three vectors were found that allow the following DOS attacks: - Unbounded memory buffering in the HPACK parser - Unbounded CPU consumption in the HPACK parser The unbounded CPU consumption is down to a copy that occurred per-input-block in the parser, and because that could be unbounded due to the memory copy bug we end up with an O(n^2) parsing loop, with n selected by the client. The unbounded memory buffering bugs: - The header size limit check was behind the string reading code, so we needed to first buffer up to a 4 gigabyte string before rejecting it as longer than 8 or 16kb. - HPACK varints have an encoding quirk whereby an infinite number of 0’s can be added at the start of an integer. gRPC’s hpack parser needed to read all of them before concluding a parse. - gRPC’s metadata overflow check was performed per frame, so that the following sequence of frames could cause infinite buffering: HEADERS: containing a: 1 CONTINUATION: containing a: 2 CONTINUATION: containing a: 3 etc…

HIGH7.5
0.41%p33
2024-11-21
CVE-2016-7421

The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.

MEDIUM4.4
0.41%p32
2026-05-06
CVE-2022-3616

Attackers can create long chains of CAs that would lead to OctoRPKI exceeding its max iterations parameter. In consequence it would cause the program to crash, preventing it from finishing the validation and leading to a denial of service. Credits to Donika Mirdita and Haya Shulman - Fraunhofer SIT, ATHENE, who discovered and reported this vulnerability.

HIGH7.5
0.40%p32
2025-05-05
CVE-2025-67726

Tornado is a Python web framework and asynchronous networking library. Versions 6.5.2 and below use an inefficient algorithm when parsing parameters for HTTP header values, potentially causing a DoS. The _parseparam function in httputil.py is used to parse specific HTTP header values, such as those in multipart/form-data and repeatedly calls string.count() within a nested loop while processing quoted semicolons. If an attacker sends a request with a large number of maliciously crafted parameters in a Content-Disposition header, the server's CPU usage increases quadratically (O(n²)) during parsing. Due to Tornado's single event loop architecture, a single malicious request can cause the entire server to become unresponsive for an extended period. This issue is fixed in version 6.5.3.

HIGH7.5
0.37%p29
2025-12-22
CVE-2025-62707

pypdf is a free and open-source pure-python PDF library. Prior to version 6.1.3, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page which has an inline image using the DCTDecode filter. This has been fixed in pypdf version 6.1.3.

HIGH7.5
0.37%p28
2025-10-27
CVE-2021-28950

An issue was discovered in fs/fuse/fuse_i.h in the Linux kernel before 5.11.8. A "stall on CPU" can occur because a retry loop continually finds the same bad inode, aka CID-775c5033a0d1.

MEDIUM5.5
0.36%p28
2024-11-21
CVE-2026-40347

Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted `multipart/form-data` requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary candidate when processing leading CR/LF data and immediately discards epilogue data after the closing boundary.

MEDIUM5.3
0.35%p27
2026-04-24
CVE-2017-0775

A denial of service vulnerability in the Android media framework (libstagefright). Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0. Android ID: A-62673179.

NONE
0.33%p25
2026-05-13
CVE-2023-30226

An issue was discovered in function get_gnu_verneed in rizinorg Rizin prior to 0.5.0 verneed_entry allows attackers to cause a denial of service via crafted elf file.

MEDIUM5.5
0.32%p24
PoC
2024-11-21
CVE-2017-2330

A denial of service vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow an unauthenticated, local user, to create a fork bomb scenario, also known as a rabbit virus, or wabbit, which will create processes that replicate themselves, until all resources are consumed on the system, leading to a denial of service to the entire system until it is restarted. Continued attacks by an unauthenticated, local user, can lead to persistent denials of services.

NONE
0.32%p23
2026-05-13
CVE-2025-6714

MongoDB Server's mongos component can become unresponsive to new connections due to incorrect handling of incomplete data. This affects MongoDB when configured with load balancer support. This issue affects MongoDB Server v6.0 prior to 6.0.23, MongoDB Server v7.0 prior to 7.0.20 and MongoDB Server v8.0 prior to 8.0.9 Required Configuration: This affects MongoDB sharded clusters when configured with load balancer support for mongos using HAProxy on specified ports.

HIGH7.5
0.31%p22
2025-10-03
CVE-2026-41168

pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.1 can craft a PDF which leads to long runtimes. This requires cross-reference streams with wrong large `/Size` values or object streams with wrong large `/N` values. This has been fixed in pypdf 6.10.1. As a workaround, one may apply the changes from the patch manually.

MEDIUM5.3
0.30%p21
2026-04-24
CVE-2026-45680

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, OBI replays BPF probe hits into histogram observations by looping once per recorded run count. On busy systems, the run-count delta can become very large, causing the metrics exporter to spend excessive CPU time in a tight loop every collection interval. This issue has been patched in version 0.9.0.

HIGH7.5
0.28%p19
2026-06-09
CVE-2025-55181

Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in proxygen::coro::HTTPQuicCoroSession which blocks the backing event loop and unconditionally appends data to a std::vector per-loop iteration. This issue leads to unbounded memory growth and eventually causes the process to run out of memory.

MEDIUM5.3
0.25%p16
2025-12-19
CVE-2026-41313

pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to long runtimes. This requires loading a PDF with a large trailer `/Size` value in incremental mode. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually.

MEDIUM6.5
0.21%p12
2026-05-05
CVE-2024-42237

In the Linux kernel, the following vulnerability has been resolved: firmware: cs_dsp: Validate payload length before processing block Move the payload length check in cs_dsp_load() and cs_dsp_coeff_load() to be done before the block is processed. The check that the length of a block payload does not exceed the number of remaining bytes in the firwmware file buffer was being done near the end of the loop iteration. However, some code before that check used the length field without validating it.

MEDIUM5.5
0.21%p11
2026-05-11
CVE-2024-42071

In the Linux kernel, the following vulnerability has been resolved: ionic: use dev_consume_skb_any outside of napi If we're not in a NAPI softirq context, we need to be careful about how we call napi_consume_skb(), specifically we need to call it with budget==0 to signal to it that we're not in a safe context. This was found while running some configuration stress testing of traffic and a change queue config loop running, and this curious note popped out: [ 4371.402645] BUG: using smp_processor_id() in preemptible [00000000] code: ethtool/20545 [ 4371.402897] caller is napi_skb_cache_put+0x16/0x80 [ 4371.403120] CPU: 25 PID: 20545 Comm: ethtool Kdump: loaded Tainted: G OE 6.10.0-rc3-netnext+ #8 [ 4371.403302] Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 01/23/2021 [ 4371.403460] Call Trace: [ 4371.403613] <TASK> [ 4371.403758] dump_stack_lvl+0x4f/0x70 [ 4371.403904] check_preemption_disabled+0xc1/0xe0 [ 4371.404051] napi_skb_cache_put+0x16/0x80 [ 4371.404199] ionic_tx_clean+0x18a/0x240 [ionic] [ 4371.404354] ionic_tx_cq_service+0xc4/0x200 [ionic] [ 4371.404505] ionic_tx_flush+0x15/0x70 [ionic] [ 4371.404653] ? ionic_lif_qcq_deinit.isra.23+0x5b/0x70 [ionic] [ 4371.404805] ionic_txrx_deinit+0x71/0x190 [ionic] [ 4371.404956] ionic_reconfigure_queues+0x5f5/0xff0 [ionic] [ 4371.405111] ionic_set_ringparam+0x2e8/0x3e0 [ionic] [ 4371.405265] ethnl_set_rings+0x1f1/0x300 [ 4371.405418] ethnl_default_set_doit+0xbb/0x160 [ 4371.405571] genl_family_rcv_msg_doit+0xff/0x130 [...] I found that ionic_tx_clean() calls napi_consume_skb() which calls napi_skb_cache_put(), but before that last call is the note /* Zero budget indicate non-NAPI context called us, like netpoll */ and DEBUG_NET_WARN_ON_ONCE(!in_softirq()); Those are pretty big hints that we're doing it wrong. We can pass a context hint down through the calls to let ionic_tx_clean() know what we're doing so it can call napi_consume_skb() correctly.

MEDIUM5.5
0.21%p11
2026-05-11
CVE-2022-48939

In the Linux kernel, the following vulnerability has been resolved: bpf: Add schedule points in batch ops syzbot reported various soft lockups caused by bpf batch operations. INFO: task kworker/1:1:27 blocked for more than 140 seconds. INFO: task hung in rcu_barrier Nothing prevents batch ops to process huge amount of data, we need to add schedule points in them. Note that maybe_wait_bpf_programs(map) calls from generic_map_delete_batch() can be factorized by moving the call after the loop. This will be done later in -next tree once we get this fix merged, unless there is strong opinion doing this optimization sooner.

LOW3.3
0.20%p10
2026-05-11
CVE-2026-27025

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires parsing the /ToUnicode entry of a font with unusually large values, for example during text extraction. This vulnerability is fixed in 6.7.1.

MEDIUM5.5
0.17%p6
2026-02-24
CVE-2019-9376

In Account of Account.java, there is a possible boot loop due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: Android; Versions: Android-9, Android-8.0, Android-8.1; Android ID: A-129287265.

MEDIUM5.5
0.14%p3
2024-11-21
CVE-2026-48156

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W [0 0 0] values and large /Size values. This vulnerability is fixed in 6.12.0.

LOW3.3
0.12%p2
2026-06-12
CVE-2021-0687

In ellipsize of Layout.java, there is a possible ANR due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-188913943

MEDIUM5.0
0.11%p2
2024-11-21
CVE-2026-50171

A Denial of Service (DoS) vulnerability exists in the `@angular/common` package of Angular. The `formatNumber` function, which is also utilized by `DecimalPipe`, `PercentPipe`, and `CurrencyPipe`, does not properly validate the upper bounds of the `digitsInfo` parameter. Specifically, the minimum and maximum fraction digits parsed from the `digitsInfo` string (e.g., `1.2-4`) are converted to integers and used without limits. When parsing a maliciously crafted `digitsInfo` string with excessively large fraction digit values (e.g., `1.200000000-200000000`), the internal `roundNumber` function attempts to pad the digits array to match the requested fraction size. This results in an unbounded loop that repeatedly pushes elements into an array. ### Impact Successful exploitation of this vulnerability allows an attacker to trigger resource exhaustion, leading to a Denial of Service (DoS): * **Server-Side Rendering (SSR):** In applications using SSR (e.g., `@angular/ssr`), an attacker can crash the Node.js server process due to a `JavaScript heap out of memory` error. This affects the availability of the application for all users. * **Client-Side Rendering (CSR):** In standard client-side applications, the unbounded loop will block the main thread, freezing the user's browser tab and making it unresponsive. ### Attack Preconditions For this vulnerability to be exploitable, the following conditions must be met: 1. **Vulnerable Component Usage:** The application must use Angular's number formatting utilities, such as the `formatNumber` function directly, or via template pipes (`DecimalPipe`, `PercentPipe`, `CurrencyPipe`). 2. **Attacker-Controlled Parameter:** The `digitsInfo` parameter passed to these utilities must be customizable or directly controlled by untrusted user input (e.g., parsed from query parameters, user preference settings, or API responses that accept user-defined formatting options). If `digitsInfo` is trusted or limited to a known, defined range for its value, the vulnerability is not exploitable by external attackers. ### Patches - 22.0.0-rc.2 - 21.2.15 - 20.3.22 - 19.2.23 ### Credits This vulnerability was discovered and reported by [CodeMender from Google DeepMind](https://deepmind.google/blog/introducing-codemender-an-ai-agent-for-code-security/).

NONEno EPSS
2026-06-15