CVE-2026-3987

Vulnerability Description

A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process.This issue affects Fireware OS 12.6.1 up to and including 12.11.8 and 2025.1 up to and including 2026.1.2.

Related Weaknesses (CWE)

CWE-22

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00009

FAQ

What is CVE-2026-3987?

CVE-2026-3987 is a documented vulnerability. A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated syst...

How severe is CVE-2026-3987?

CVSS scoring is not yet available for CVE-2026-3987. Check NVD for updates.

Is there a patch for CVE-2026-3987?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.