CVE-2026-13054#
WatchGuard Firebox Arbitrary File Write via Path Traversal in Management Web UI
Summary #
A path traversal vulnerability in the WatchGuard Fireware OS Management Web UI allows a privileged authenticated attacker to write arbitrary files on the Firebox's filesystem.
Product status #
| Product | Affected | Not affected |
|---|---|---|
| Fireware OS | ||
| Default | >= 2025.1, < 2026.2.1, >= 12.0, < 12.12.1, >= 11.0 | >= 2026.2.1, >= 12.12.1 |
| T15/T35 | >= 12.0, < 12.5.19 | >= 12.5.19 |
| EUCC | >= 12.0, < 12.11.9 | >= 12.11.9 |
Weakness Type and Impact #
Exploitation Status #
WatchGuard is not aware of any exploitation of this vulnerability in the wild.
Solution #
Fireware OS 2026.2.1, Fireware OS 12.12.1, Fireware OS 12.5.19, Fireware OS 12.11.9
References #
Credits #
- Nicholas Zubrisky (@NZubrisky) of TrendAI Researchfinder