RCE in Netgate Pfsense Ce
CVE-2026-111224
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.
Vulnerability class: Command Injection (OS Command Injection)
Published .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/abraxas/pfsense-ovpn-connect-eval (technical-description, exploit)
- abraxaslabs.tech/research/pfsense-ce-leftovers (technical-description)
- github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/us… (technical-description)
- www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-inject… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111224?
- CVE-2026-111224 is a high-severity vulnerability in Netgate Pfsense Ce, classified under OS Command Injection. CVSS score: 7.5/10. Published 2026-10-15.
- How severe is CVE-2026-111224?
- High severity. CVSS v3 base score is 7.5 out of 10.