PT-2026-55324 · Watchguard · Fireware Os

Published 2026-07-02 · Updated 2026-07-03 · CVE-2026-13054

Positive Technologies (AI Summary)

CVSS v4.0

8.6

High

Base vector

AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 11.0 through 11.12.4 Update1 WatchGuard Fireware OS versions 12.0 through 12.12 WatchGuard Fireware OS versions 2025.1 through 2026.2

Description A path traversal issue in the Management Web UI allows a privileged authenticated attacker to write arbitrary files on the Firebox filesystem. Path traversal is a flaw that allows an attacker to access or manipulate files and directories outside the intended folder by using special characters like dot-dot-slash (../).

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-13054

Affected Products

Fireware Os

References · 4

• https://watchguard.com/wgrd-psirt/advisory/wgsa-2026-00028 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-13054 · Security Note
• https://twitter.com/infoflowcloud/status/2072868231908372498 · Twitter Post
• https://twitter.com/CVEnew/status/2072867215481692492 · Twitter Post