{"id":"CVE-2026-111225","title":"Netgate pfSense CE 2.5.0 through 2.9.0 contains an OS command injection vulnerability in openvpn.learn-address.sh that allows authenticated VPN clients to execute commands as the unbound user","summary":"Netgate pfSense CE 2.5.0 through 2.9.0 contains an OS command injection vulnerability in openvpn.learn-address.sh that allows authenticated VPN clients to execute commands as the unbound user. Attackers can embed shell metacharacters in …","severity":"medium","cvss":5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","cwe":["CWE-78"],"vendor":"Netgate","product":"pfSense CE","affected":["pfsense_ce >= 2.5.0 <= 2.9.0"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T19:17:35.230","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-111225","references":[{"url":"https://abraxaslabs.tech/research/pfsense-ce-leftovers","label":"disclosure@vulncheck.com"},{"url":"https://github.com/abraxas/pfsense-ovpn-learn-cn","label":"disclosure@vulncheck.com"},{"url":"https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/sbin/openvpn.learn-address.sh#L57-L62","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.5.0-through-2.9.0-os-command-injection-via-openvpn-learn-address-sh","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"ingestedAt":"2026-10-15T19:25:46.429Z","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T19:48:50.888190Z"},"slug":"CVE-2026-111225","body":"## Overview\n\nNetgate pfSense CE 2.5.0 through 2.9.0 contains an OS command injection vulnerability in openvpn.learn-address.sh that allows authenticated VPN clients to execute commands as the unbound user. Attackers can embed shell metacharacters in the certificate common name or username, which is interpolated unquoted into su -c strings, when DNS Resolver client registration is enabled.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":27.5,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":222718,"id":"CVE-2026-111225","ts":1792097060870,"field":"exploit_available","old":"false","new":"true"}]}