CVE-2026-110908: Netgate pfSense FRR package command injection in status filter

CVE-2026-110908 · Severity: high · CVSS 8.8 · Published 2026-10-15

Netgate's pfSense FRR package is a network routing add-on for pfSense firewalls. An authenticated administrator with limited privileges can inject arbitrary shell commands through the FRR status page's filter feature, causing those commands to run with root privileges. This could allow an internal attacker to take complete control of the firewall.

Vendors: Netgate.

Quick answers

Is CVE-2026-110908 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-110908 being exploited in the wild.
How severe is CVE-2026-110908?
High severity, with a CVSS score of 8.8, published 15 October 2026.
Which products and versions are affected?
Netgate pfSense-pkg-frr 2.0.2_1, 2.1.2_1.
Is there a fix for CVE-2026-110908?
Yes: fixed in Updated packages for pfSense Plus 26.07, 26.03.1 and pfSense CE 2.9.0, 2.8.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-110908 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-110908?
Check whether you run Netgate pfSense-pkg-frr 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.

How to fix

  • Fixed in: Updated packages for pfSense Plus 26.07, 26.03.1 and pfSense CE 2.9.0, 2.8.1

Technical details

The vulnerability is an OS command injection in the FRR status filter (status_frr.php) where user-supplied input is improperly escaped before being passed to a sed expression in a popen() pipeline. An attacker who has authenticated access with the page-status-frr privilege can break out of a single-quoted sed context and inject shell command substitution, which is then executed as root.

Affected products

  • Netgate pfSense-pkg-frr 2.0.2_1, 2.1.2_1

Timeline

  • 2026-10-15: disclosed

References

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