pfSense CE <=2.9.0 OpenVPN openvpn.connect_async.sh OS command injection
CVE-2026-111224 Published on October 15, 2026
Netgate pfSense CE through 2.9.0 OS Command Injection via openvpn.connect_async.sh
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 Analysis
CVE-2026-111224 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2026-111224. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-111224 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2026-111224
Want to know whenever a new CVE is published for Netgate Pfsense? stack.watch will email you.
Affected Versions
Netgate pfSense CE:- Before and including 2.9.0 is affected.