CVE-2026-111221
MEDIUM
CVSS 6.6
Published: 2026-10-15
Modified: 2026-10-15
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Threat Intelligence Pending
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Description
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.
Quick Facts
| CVE ID | CVE-2026-111221 |
| CVSS Score | 6.6 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| Published | 2026-10-15 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://abraxaslabs.tech/research/pfsense-ce-leftovers
- https://github.com/abraxas/pfsense-l2tp-radius-mpd
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333…
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333…
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333…
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-thro…