PHP Injection Vulnerability in Netgate pfSense CE
CVE-2026-111222

7.5HIGH

Key Information:

Vendor

Netgate

Status
Pfsense Ce
Vendor
CVE Published:
15 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-111222?

Netgate pfSense CE versions up to 2.9.0 are susceptible to a php.ini injection vulnerability, which allows authenticated users with General Setup privileges to manipulate settings by submitting unvalidated timezone values. This vulnerability can enable attackers to inject directives like auto_prepend_file targeting /var/db/zoneinfo, potentially executing PHP scripts with elevated privileges. Successful exploitation can occur after the regeneration of the php.ini file, which happens upon boot or a restart of php-fpm, leading to serious security risks.

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-2026-111222 - Proof of Concept

References

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

CVSS V4

Score:
7.5
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
.