CVE-2026-111221

Netgate pfSense CE through 2.9.0 contains a configuration injection vulnerability that allows authenticated WebGUI users to inject mpd5 commands by submitting an unescaped RADIUS shared secret. Attackers with L2TP or PPPoE Server edit privileges can POST a secret containing a quote and newline to vpn_l2tp.php or services_pppoe_edit.php, appending an up-script that executes as root when a session starts.
Configurations

Configuration 1 (hide)

cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*

History

20 Oct 2026, 15:37

Type Values Removed Values Added
CPE cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*
References () https://abraxaslabs.tech/research/pfsense-ce-leftovers - () https://abraxaslabs.tech/research/pfsense-ce-leftovers - Issue Tracking
References () https://github.com/abraxas/pfsense-l2tp-radius-mpd - () https://github.com/abraxas/pfsense-l2tp-radius-mpd - Third Party Advisory
References () https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L202-L215 - () https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L202-L215 - Product
References () https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L428-L441 - () https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L428-L441 - Product
References () https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/vpn_l2tp.php#L137-L143 - () https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/vpn_l2tp.php#L137-L143 - Product
References () https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-command-injection-via-radius-secret-mpd-conf-injection - () https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-command-injection-via-radius-secret-mpd-conf-injection - Third Party Advisory
First Time Pfsense
Pfsense pfsense

15 Oct 2026, 19:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-15 19:17

Updated : 2026-10-26 16:17


NVD link : CVE-2026-111221

Mitre link : CVE-2026-111221

CVE.ORG link : CVE-2026-111221


JSON object : View

Products Affected

pfsense

  • pfsense
CWE
CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')