RCE in Netgate Pfsense-Pkg-Frr
CVE-2026-110908
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Netgate Pfsense-Pkg-Frr — versions 2.0.2_1, 2.1.2_1
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-110908?
- CVE-2026-110908 is a high-severity vulnerability in Netgate Pfsense-Pkg-Frr, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-10-15.
- How severe is CVE-2026-110908?
- High severity. CVSS v3 base score is 8.8 out of 10.