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CWE-226

Sensitive Information in Resource Not Removed Before Reuse

BaseDraftSimple31 CVEs
The product releases a resource such as memory or a file so that it can be made available for reuse, but it does not clear or "zeroize" the information contained in the resource before the product performs a critical state transition or makes the resource available for reuse by other entities.

Extended description

When resources are released, they can be made available for reuse. For example, after memory is de-allocated, an operating system may make the memory available to another process, or disk space may be reallocated when a file is deleted. As removing information requires time and additional resources, operating systems do not usually clear the previously written information. Even when the resource is reused by the same process, this weakness can arise when new data is not as large as the old data, which leaves portions of the old data still available. Equivalent errors can occur in other situations where the length of data is variable but the associated data structure is not. If memory is not cleared after use, the information may be read by less trustworthy parties when the memory is reallocated. This weakness can apply in hardware, such as when a device or system switches between power, sleep, or debug states during normal operation, or when execution changes to different users or privilege levels.

Common consequences1

  • ConfidentialityRead Application Data

Potential mitigations2

  1. Architecture and DesignImplementationHigh

    During critical state transitions, information not needed in the next state should be removed or overwritten with fixed patterns (such as all 0's) or random data, before the transition to the next state.

  2. Architecture and DesignImplementationHigh

    When releasing, de-allocating, or deleting a resource, overwrite its data and relevant metadata with fixed patterns or random data. Be cautious about complex resource types whose underlying representation might be non-contiguous or change at a low level, such as how a file might be split into different chunks on a file system, even though "logical" file positions are contiguous at the application layer. Such resource types might require invocation of special modes or APIs to tell the underlying operating system to perform the necessary clearing, such as SDelete (Secure Delete) on Windows, although the appropriate functionality might not be available at the application layer.

Relationships3

CVEs referencing this CWE31

CVEDescriptionSeverityEPSSFlagsModified
CVE-2020-27218

In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.

MEDIUM4.8
8.11%p94
2024-11-21
CVE-2018-7166

In all versions of Node.js 10 prior to 10.9.0, an argument processing flaw can cause `Buffer.alloc()` to return uninitialized memory. This method is intended to be safe and only return initialized, or cleared, memory. The third argument specifying `encoding` can be passed as a number, this is misinterpreted by `Buffer's` internal "fill" method as the `start` to a fill operation. This flaw may be abused where `Buffer.alloc()` arguments are derived from user input to return uncleared memory blocks that may contain sensitive information.

HIGH7.5
3.24%p87
2024-11-21
CVE-2022-39393

Wasmtime is a standalone runtime for WebAssembly. Prior to versions 2.0.2 and 1.0.2, there is a bug in Wasmtime's implementation of its pooling instance allocator where when a linear memory is reused for another instance the initial heap snapshot of the prior instance can be visible, erroneously to the next instance. This bug has been patched and users should upgrade to Wasmtime 2.0.2 and 1.0.2. Other mitigations include disabling the pooling allocator and disabling the `memory-init-cow`.

HIGH8.6
0.66%p47
2025-05-02
CVE-2024-32036

ImageSharp is a 2D graphics API. A data leakage flaw was found in ImageSharp's JPEG and TGA decoders. This vulnerability is triggered when an attacker passes a specially crafted JPEG or TGA image file to a software using ImageSharp, potentially disclosing sensitive information from other parts of the software in the resulting image buffer. The problem has been patched in v3.1.4 and v2.1.8.

MEDIUM6.5
0.58%p43
2025-01-09
CVE-2024-7883

When using Arm Cortex-M Security Extensions (CMSE), Secure stack contents can be leaked to Non-secure state via floating-point registers when a Secure to Non-secure function call is made that returns a floating-point value and when this is the first use of floating-point since entering Secure state. This allows an attacker to read a limited quantity of Secure stack contents with an impact on confidentiality. This issue is specific to code generated using LLVM-based compilers.

LOW3.7
0.48%p38
2025-12-23
CVE-2019-25560

Lyric Video Creator 2.1 contains a denial of service vulnerability that allows attackers to crash the application by processing malformed MP3 files. Attackers can create a crafted MP3 file with an oversized buffer and trigger the crash by opening the file through the Browse song functionality.

HIGH7.5
0.47%p37
2026-04-16
CVE-2024-38275

The cURL wrapper in Moodle retained the original request headers when following redirects, so HTTP authorization header information could be unintentionally sent in requests to redirect URLs.

HIGH7.5
0.45%p35
2025-05-01
CVE-2026-5795

In Eclipse Jetty, the class JASPIAuthenticator initiates the authentication checks, which set two ThreadLocal variable. Upon returning from the initial checks, there are conditions that cause an early return from the JASPIAuthenticator code without clearing those ThreadLocals. A subsequent request using the same thread inherits the ThreadLocal values, leading to a broken access control and privilege escalation.

HIGH7.4
0.38%p29
2026-04-23
CVE-2019-1573

GlobalProtect Agent 4.1.0 for Windows and GlobalProtect Agent 4.1.10 and earlier for macOS may allow a local authenticated attacker who has compromised the end-user account and gained the ability to inspect memory, to access authentication and/or session tokens and replay them to spoof the VPN session and gain access as the user.

LOW2.5
0.28%p19
2024-11-21
CVE-2026-32960

SD-330AC and AMC Manager provided by silex technology, Inc. contain an issue with a sensitive information in resource not removed before reuse. An attacker may login to the device without knowing the password by sending a crafted packet.

MEDIUM6.5
0.26%p17
2026-04-22
CVE-2025-11602

Potential information leak in bolt protocol handshake in Neo4j Enterprise and Community editions allows attacker to obtain one byte of information from previous connections. The attacker has no control over the information leaked in server responses.

NONE
0.26%p17
2026-04-15
CVE-2023-3006

A known cache speculation vulnerability, known as Branch History Injection (BHI) or Spectre-BHB, becomes actual again for the new hw AmpereOne. Spectre-BHB is similar to Spectre v2, except that malicious code uses the shared branch history (stored in the CPU Branch History Buffer, or BHB) to influence mispredicted branches within the victim's hardware context. Once that occurs, speculation caused by the mispredicted branches can cause cache allocation. This issue leads to obtaining information that should not be accessible.

MEDIUM5.5
0.26%p18
2025-01-09
CVE-2025-2522

The Honeywell Experion PKS and OneWireless WDM contains Sensitive Information in Resource vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to a Communication Channel Manipulation, which could result in buffer reuse which may cause incorrect system behavior. Honeywell also recommends updating to the most recent version of Honeywell Experion PKS:520.2 TCU9 HF1 and 530.1 TCU3 HF1 and OneWireless: 322.5 and 331.1.  The affected Experion PKS products are C300, FIM4, FIM8, UOC, CN100, HCA, C300PM, and C200E. The Experion PKS versions affected are 520.1 before 520.2 TCU9 HF1 and 530 before 530 TCU3. The OneWireless WDM affected versions are 322.1 through 322.4 and 330.1 through 330.3.

MEDIUM6.5
0.23%p14
2026-04-15
CVE-2023-1637

A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of the CPU similar to the speculative execution behavior kind of attacks.

MEDIUM5.5
0.22%p13
2025-02-19
CVE-2024-21850

Sensitive information in resource not removed before reuse in some Intel(R) TDX Seamldr module software before version 1.5.02.00 may allow a privileged user to potentially enable escalation of privilege via local access.

MEDIUM6.0
0.20%p10
2026-04-15
CVE-2019-25657

AnyBurn 4.3 x86 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string to the image conversion function. Attackers can paste a large buffer into the source or destination image file fields and click Convert Now to trigger a crash.

MEDIUM5.5
0.19%p9
2026-04-20
CVE-2019-25571

MediaMonkey 4.1.23 contains a denial of service vulnerability that allows local attackers to crash the application by opening a specially crafted MP3 file containing an excessively long URL string. Attackers can create a malicious MP3 file with a buffer containing 4000 bytes of data appended to a URL, which causes the application to crash when the file is opened through the File > Open URL dialog.

MEDIUM5.5
0.18%p8
2026-03-24
CVE-2019-25563

PCHelpWareV2 1.0.0.5 contains a denial of service vulnerability that allows local attackers to crash the application by supplying a malformed image file. Attackers can trigger the vulnerability through the Create SC feature by selecting a crafted BMP file with an oversized buffer, causing the application to crash.

MEDIUM5.5
0.18%p8
2026-03-24
CVE-2025-13108

IBM DB2 Merge Backup for Linux, UNIX and Windows 12.1.0.0 could allow an attacker to access sensitive information in memory due to the buffer not properly clearing resources.

HIGH7.5
0.18%p8
2026-02-26
CVE-2023-41138

The AppsAnywhere macOS client-privileged helper can be tricked into executing arbitrary commands with elevated permissions by a local user process.

MEDIUM6.7
0.18%p7
2024-11-21
CVE-2019-25645

WinAVI iPod/3GP/MP4/PSP Converter 4.4.2 contains a denial of service vulnerability that allows local attackers to crash the application by processing malformed AVI files. Attackers can create a specially crafted AVI file with an oversized buffer and load it through the Convert to iPhone function to trigger an application crash.

MEDIUM6.2
0.17%p7
2026-03-24
CVE-2019-25553

CEWE PHOTO IMPORTER 6.4.3 contains a denial of service vulnerability that allows local attackers to crash the application by importing a specially crafted image file. Attackers can create a malformed JPG file with an oversized buffer and trigger the crash through the import functionality during the image processing workflow.

MEDIUM5.5
0.17%p7
2026-04-10
CVE-2025-0647

In certain Arm CPUs, a CPP RCTX instruction executed on one Processing Element (PE) may inhibit TLB invalidation when a TLBI is issued to the PE, either by the same PE or another PE in the shareability domain. In this case, the PE may retain stale TLB entries which should have been invalidated by the TLBI.

HIGH7.9
0.15%p5
2026-01-26
CVE-2019-25617

Ease Audio Converter 5.30 contains a denial of service vulnerability in the Audio Cutter function that allows local attackers to crash the application by processing malformed MP4 files. Attackers can create a crafted MP4 file containing an oversized buffer and load it through the Audio Cutter interface to trigger an application crash.

MEDIUM6.2
0.13%p3
2026-04-16
CVE-2025-33200

NVIDIA DGX Spark GB10 contains a vulnerability in SROOT firmware, where an attacker could cause a resource to be reused. A successful exploit of this vulnerability might lead to information disclosure.

LOW3.3
0.12%p2
2025-12-02
CVE-2025-33196

NVIDIA DGX Spark GB10 contains a vulnerability in SROOT firmware, where an attacker could cause a resource to be reused. A successful exploit of this vulnerability might lead to information disclosure.

MEDIUM5.5
0.12%p2
2025-12-02
CVE-2025-14858

The Semtech LR11xx LoRa transceivers running early versions of firmware contains an information disclosure vulnerability in its firmware validation functionality. When a host issues a firmware validity check command via the SPI interface, the device decrypts the provided encrypted firmware package block-by-block to validate its integrity. However, the last decrypted firmware block remains uncleared in memory after the validation process completes. An attacker with access to the SPI interface can subsequently issue memory read commands to retrieve the decrypted firmware contents from this residual memory, effectively bypassing the firmware encryption protection mechanism. The attack requires physical access to the device's SPI interface.

NONE
0.11%p2
2026-04-08
CVE-2025-33198

NVIDIA DGX Spark GB10 contains a vulnerability in SROOT firmware, where an attacker could cause a resource to be reused. A successful exploit of this vulnerability might lead to information disclosure.

LOW3.3
0.11%p2
2025-12-02
CVE-2025-20622

Sensitive information uncleared in resource before release for reuse for some Intel(R) NPU Drivers for Windows before version 32.0.100.4023 within Ring 3: User Applications may allow an information disclosure. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

LOW3.8
0.11%p2
2026-04-15
CVE-2025-48066

wire-webapp is the web application for the open-source messaging service Wire. A bug fix caused a regression causing an issue with function to delete local data. Instructing the client to delete its local database on user logout does not result in deletion. This is the case for both temporary clients (marking the device as a public computer on login) and regular clients instructing the deletion of all personal information and conversations upon logout. Access to the machine is required to access the data. If encryption-at-rest is used, cryptographic material can't be exported. The underlying issue has been fixed with wire-webapp version 2025-05-14-production.0. In order to mitigate potential impact, the database must be manually deleted on devices where the option "This is a public computer" was used prior to log in or a log out with the request to delete local data with the affected versions has happened before.

MEDIUM5.5
0.09%p0
2025-05-30
CVE-2026-48984

pam_usb provides hardware authentication for Linux using ordinary removable media. In versions 0.9.1 and below, the xfree() memory release helper in calls free() without first zeroing the buffer contents, releasing heap-allocated buffers containing sensitive data — including one-time pad bytes read from disk — without clearing, leaving the sensitive content in freed heap memory until it happens to be overwritten by a subsequent allocation. On a system where a use-after-free condition exists, or where a heap inspection primitive becomes available, this could allow recovery of pad values or other authentication material from freed memory regions. This is a defence-in-depth requirement consistent with prior hardening work in this codebase (GHSA-vx6f-rrqr-j87c applied explicit_bzero to some pad paths; this issue generalises the pattern to the central deallocation helper).

MEDIUM4.7no EPSS
2026-06-18