Vulnerability Details CVE-2026-111223
Netgate pfSense CE 2.7.0 through 2.9.0 contains a configuration injection vulnerability that allows authenticated users with IPsec Mobile privileges to execute commands as root via the login_banner field. Attackers can submit a single-line banner containing '}' to escape the unquoted strongswan.conf attr value and define charon.start-scripts entries that charon executes as root on restart.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 54.5%
CVSS Severity
CVSS v3 Score 7.2
References
- https://abraxaslabs.tech/research/pfsense-ce-leftovers
- https://abraxaslabs.tech/research/pfsense-ipsec-login-banner
- https://github.com/abraxas/pfsense-ipsec-login-banner
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/ipsec.inc#L1361-L1388
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/ipsec.inc#L1842-L1845
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/vpn_ipsec_mobile.php#L269-L273
- https://github.com/pfsense/pfsense/commit/27a52d0807
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-command-injection-via-ipsec-mobile-login-banner