High severity7.5NVD Advisory· Published Oct 15, 2026· Updated Oct 15, 2026

CVE-2026-111224

Description

pfSense CE through 2.9.0 contains an OS command injection vulnerability in the OpenVPN openvpn.connect_async.sh script that allows authenticated VPN users to execute commands as root via crafted usernames. Attackers authenticated through RADIUS or LDAP can use usernames containing single quotes and shell metacharacters to break out of the eval'd pfctl anchor name on connect or disconnect.

Affected products

Pfsense/Pfsensellm-fuzzy
Range: <=2.9.0
Netgate/Pfsense Cellm-fuzzy
Range: <=2.9.0

Patches

Vulnerability mechanics

References

abraxaslabs.tech/research/pfsense-ce-leftoversnvd
github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/sbin/openvpn.connect_async.shnvd
www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-injection-via-openvpn-connect-async-shnvd

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