CVE-2026-111229: pfSense CE command injection in captive portal HA sync

CVE-2026-111229 · Severity: high · CVSS 7.2 · Published 2026-10-15

pfSense CE is an open-source firewall that protects networks by filtering traffic and providing security services. A privilege escalation vulnerability in versions 2.7.0 through 2.9.0 allows users with only captive portal administration privileges to execute arbitrary commands with root permissions. An attacker could exploit this to take complete control of the firewall and access or modify all traffic and data passing through it.

Technologies: Netgate Pfsense Ce. Vendors: Netgate.

Quick answers

Is CVE-2026-111229 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111229 being exploited in the wild.
How severe is CVE-2026-111229?
High severity, with a CVSS score of 7.2, published 15 October 2026.
Which products and versions are affected?
Netgate Pfsense Ce 2.7.0 through 2.9.0.
Is there a fix for CVE-2026-111229?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-111229 attacked?
It is attacked over the network.
Am I affected by CVE-2026-111229?
Check whether you run Netgate Pfsense Ce at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a command injection flaw in services_captiveportal_hasync.php where user-supplied input from a malicious XMLRPC server is passed unescaped to pfctl shell commands. A low-privileged user with only the Captive Portal HA privilege can set a malicious backwardsyncip server that returns shell metacharacters in the ip or mac fields of connected_users, which captiveportal_load_pfctl then executes as root via /bin/sh -c.

Affected products

  • Netgate pfSense CE 2.7.0 through 2.9.0

Timeline

  • 2026-10-15: disclosed

References

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