CVE-2026-111228

Netgate pfSense CE 2.7.1 through 2.9.0 CRLF Injection via services_unbound_advanced.php

5.1 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: Low

Exploit likelihood

1.84%Up 1.0 points since Oct 16, 2026

What each source reports

CVE List Score used 5.1

Netgate pfSense CE 2.7.1 through 2.9.0 CRLF Injection via services_unbound_advanced.php

Record: CVE-2026-111228
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L
Weakness: CWE-93
Updated: 2026-11-02

EUVDEUVD-2026-102340 5.1

Record: EUVD-2026-102340
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-3pxq-gxxr-7p9c 5.1

Netgate pfSense CE from 2.7.1 through 2.9.0 contains a CRLF injection vulnerability in...

Record: GHSA-3pxq-gxxr-7p9c
CVSS 4.0: 5.1 MediumCVSS: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
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L
Weakness: CWE-93
Updated: 2026-11-02

NVD 5.1

Record: CVE-2026-111228
CVSS 4.0: 5.1 MediumCVSS: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
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L
Weakness: CWE-93
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-111228 is a medium vulnerability (CVSS 5.1) in Netgate Pfsense Ce, published October 15, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.84%, the 79th percentile. No source names a fixed version.