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.
References
Configurations
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 - Issue Tracking | |
| References | () 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 - Product | |
| References | () 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 - Product | |
| References | () 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')
