OS Command Injection Vulnerability in OpenVPN Script for pfSense CE
CVE-2026-111224

7.7HIGH

Key Information:

Vendor

Netgate

Status
Pfsense Ce
Vendor
CVE Published:
15 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-111224?

The pfSense CE platform, specifically version 2.9.0, is vulnerable to OS command injection through the OpenVPN script. Authenticated users, particularly those utilizing RADIUS or LDAP for authentication, can exploit this vulnerability by crafting usernames that include single quotes and shell metacharacters. This allows attackers to escape the controlled environment and execute arbitrary commands with root privileges during VPN connection or disconnection processes. The implications of this vulnerability could lead to significant security breaches if left unmitigated.

Affected Version(s)

pfSense CE 0 <= 2.9.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-111224 - Proof of Concept

References

https://github.com/abraxas/pfsense-ovpn-connect-eval
exploittechnical-description
https://abraxaslabs.tech/research/pfsense-ce-leftovers
technical-description
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a...
technical-description

CVSS V4

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Abraxas Labs
.