{"id":"CVE-2026-111231","revision":"363a082af7c5441eb4c0ad4b089a76f8","records":[{"revision":"363a082af7c5441eb4c0ad4b089a76f8","observedAt":"2026-10-26T16:35:30.797+00:00","statement":{"source":"cve-program","id":"CVE-2026-111231","aliases":[],"title":"Netgate pfSense CE through 2.9.0 Authorization Bypass via config_restore() and config_install()","description":"Netgate pfSense CE through 2.9.0 contains an authorization bypass vulnerability that allows read-only WebGUI users to replace config.xml because config_restore() and config_install() ignore the 'User - Config: Deny Config Write' privilege. Attackers holding page privileges for services_acb.php, uploadconfig.php, diag_confbak.php, or diag_backup.php can install a chosen config.xml to gain root-level code execution after reload or reboot.","state":0,"publishedAt":"2026-10-15T18:46:31.461+00:00","modifiedAt":"2026-10-26T15:06:23.532+00:00","affected":[{"ecosystem":"https://github.com","name":"pfSense CE","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Netgate\",\n                    \"product\": \"pfSense CE\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"2.9.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"collectionURL\": \"https://github.com\",\n                    \"packageURL\": \"pkg:github/pfsense/pfsense\",\n                    \"repo\": \"https://github.com/pfsense/pfsense\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.6,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":7.2,"severity":"HIGH"}],"references":["https://github.com/abraxas/pfsense-config-readonly-restore","https://abraxaslabs.tech/research/pfsense-ce-leftovers","https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/config.lib.inc#L743-L798","https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/config.lib.inc#L588-L597","https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-authorization-bypass-via-config-restore-and-config-install"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111231","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111231","identifiers":["CVE-2026-111231"]},"retained":false,"historicalAffected":[]}],"coverage":[]}