CVE-2026-111227mediumCWE-93

CVE-2026-111227: medium-severity vulnerability in Netgate pfSense CE

Netgate pfSense CE through 2.9.0 CRLF Injection via services_unbound_acls.php

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 5.1epss 1.8%
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.
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
Affected products
Netgate · pfSense CE
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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