Path Traversal in Watchguard Fireware Os
CVE-2026-3987
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…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.006 (70.7th percentile) — read the EPSS interpretation.
Affected products
- Watchguard Fireware Os — versions 12.6.1, 2025.1