CVE-2026-13054

HIGH

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

Title source: cna

Description

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. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

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

Scores

CVSS v3 7.2

EPSS 0.0059

EPSS Percentile 44.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-22

Status published

Products (5)

watchguard/fireware 11.0 - 12.12.1

WatchGuard/Fireware OS 11.0 - 11.12.4+541730

WatchGuard/Fireware OS 12.0 - 12.12

WatchGuard/Fireware OS 12.5 - 12.5.18

WatchGuard/Fireware OS 2025.1 - 2026.2

Published Jul 03, 2026

Tracked Since Jul 03, 2026