Netgate pfSense CE from 2.7.1 through 2.9.0 contains a CRLF injection vulnerability in services_unbound_advanced.php that allows…
VulnCheck·CWE-93·Published 2026-10-15
Netgate pfSense CE from 2.7.1 through 2.9.0 contains a CRLF injection vulnerability in services_unbound_advanced.php that allows authenticated users with DNS Resolver: Advanced privilege to inject Unbound directives. Attackers can embed CR/LF characters in the unvalidated sock_queue_timeout parameter, which is written raw into unbound.conf, to override local records and forwarding for all clients.
Netgate pfSense CE from 2.7.1 through 2.9.0 contains a CRLF injection vulnerability in services_unbound_advanced.php that allows authenticated users with DNS Resolver: Advanced privilege to inject Unbound directives. Attackers can embed CR/LF characters in the unvalidated sock_queue_timeout parameter, which is written raw into unbound.conf, to override local records and forwarding for all clients.
| Version | Type | Source | Base | Exp | Impact | Vector |
|---|---|---|---|---|---|---|
| 3.1 | Primary | cve.org | 5.5 | — | — | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L |
| 3.1 | Primary | cve.org | 5.5 | — | — | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L |
| 3.1 | Primary | NVD | 5.5 | 2.3 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L |
| 3.1 | Secondary | NVD | 5.5 | 2.3 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L |
| 4.0 | Primary | cve.org | 5.1 | — | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L |
| 4.0 | Primary | cve.org | 5.1 | — | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L |
| 4.0 | Secondary | NVD | 5.1 | — | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| 4.0 | Secondary | ENISA EUVD | 5.1 | — | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L |