CVE-2026-110908

High

Description

Netgate pfSense FRR package (pfSense-pkg-frr) 2.0.2_1 and source revision 2.1.2_1 contain an OS command injection vulnerability in the FRR status filter. An authenticated WebGUI user with only the page-status-frr privilege can supply a filter value that breaks out of a single-quoted sed expression into which escapeshellarg() output is concatenated. Shell command substitution is then evaluated by a popen() pipeline, allowing attacker-selected commands to execute as root. There are updated FRR packages for pfSense Plus 26.07/26.03.1 and CE 2.9.0/2.8.1.

SeverityHigh

CVSS8.8

Exploit probability—

ProductpfSense-pkg-frr

PublishedOct 15, 2026

First seenOct 15, 2026

Weakness typeCWE-78OS command injection

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
Netgate pfSense-pkg-frr	2.0.2_1, 2.1.2_1	—

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