CVE-2026-111227

Netgate pfSense CE through 2.9.0 CRLF Injection via services_unbound_acls.php

Published Oct 15, 2026 CVSS 4.0 · 5.1 Medium EPSS 1.8% KEV · Not listed
Description
Netgate pfSense CE through 2.9.0 contains a CRLF injection vulnerability in services_unbound_acls.php that allows authenticated users with the DNS Resolver: Access Lists privilege to inject Unbound configuration directives. Attackers can embed CR/LF characters in the aclname or aclaction fields written to access_lists.conf to add local-data, local-zone, or forward-zone directives and control DNS answers served to LAN clients.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Pfsense
Pfsense pfsense
CPEs cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*
Vendors & Products Pfsense
Pfsense pfsense
Type Values Removed Values Added
Description Netgate pfSense CE through 2.9.0 contains a CRLF injection vulnerability in services_unbound_acls.php that allows authenticated users with the DNS Resolver: Access Lists privilege to inject Unbound configuration directives. Attackers can embed CR/LF characters in the aclname or aclaction fields written to access_lists.conf to add local-data, local-zone, or forward-zone directives and control DNS answers served to LAN clients.
Title Netgate pfSense CE through 2.9.0 CRLF Injection via services_unbound_acls.php
First Time appeared Netgate
Netgate pfsense
Weaknesses CWE-93
CPEs cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*
Vendors & Products Netgate
Netgate pfsense
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L'}

cvssV4_0

{'score': 5.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 21, 2026, 1:10 AM
Reserved
Oct 15, 2026, 6:21 PM
Status
Analyzed
Published
Oct 15, 2026, 7:17 PM
Modified
Oct 21, 2026, 1:17 AM