CVE-2026-13054

UNKNOWN 0.0

WatchGuard Firebox Arbitrary File Write via Path Traversal in Management Web UI

CVSS Score

0.0

EPSS Score

0.6%

EPSS Percentile

45th

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.

CWE	CWE-22
Vendor	watchguard
Product	fireware os
Published	Jul 2, 2026
Last Updated	Aug 10, 2026

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Affected Versions

WatchGuard / Fireware OS

2025.1 < 2026.2.1 12.0 < 12.12.1 11.0 < *

WatchGuard / Fireware OS

12.0 < 12.5.19

References

NVD ↗ CVE.org ↗ EPSS Data ↗

psirt.watchguard.com: https://psirt.watchguard.com/CVE-2026-13054 watchguard.com: https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00028

Credits

Nicholas Zubrisky (@NZubrisky) of TrendAI Research