CVE-2026-13224 PUBLISHED

Fireware OS Path Traversal in WebUI Management Agent Allows Arbitrary Local File Read

Assigner: WatchGuard
Reserved: 24.06.2026 Published: 29.09.2026 Updated: 30.09.2026

A path traversal vulnerability in the Fireware OS WebUI management agent allows an authenticated administrator to read or list arbitrary files on the local filesystem by sending a specially crafted management request.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CVSS Score: 8.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	WatchGuard
Product	Fireware OS
Versions	Default: unaffected affected from 12.0 to 12.5.21 (excl.)

Vendor	WatchGuard
Product	Fireware OS
Versions	Default: unaffected affected from 2026.3 to 2026.3.2 (excl.) affected from 2025.0 to 2026.2.3 (excl.) affected from 12.0 to 12.12.3 (excl.)

Affected Configurations

In order to exploit this vulnerability, an attacker must have network access to the Management Web UI.

Exploits

WatchGuard is not aware of any exploitation of this vulnerability in the wild.

Solutions

Fireware OS 12.5.21, Fireware OS 2026.3.2, Fireware OS 2026.2.3, Fireware OS 12.12.3

Credits

Yukusawa18 finder

References

https://psirt.watchguard.com/CVE-2026-13224

Problem Types

CWE-22 CWE
CWE-23 CWE