8.6
HIGH CVSS 4.0
CVE-2026-13722
WatchGuard Firebox Firmware Image Validation Bypass in WatchGuard Fireware OS
Description

WatchGuard Fireware OS contains a firmware validation bypass when processing a backup image via the backup/restore feature. An authenticated administrator can exploit this vulnerability to install a tampered firmware image.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 2025.6.2.

INFO

Published Date :

July 2, 2026, 11:06 p.m.

Last Modified :

July 2, 2026, 11:06 p.m.

Remotely Exploit :

Yes !

Source :

WatchGuard
Affected Products

The following products are affected by CVE-2026-13722 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Watchguard fireware_os
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH 5d1c2695-1a31-4499-88ae-e847036fd7e3
Solution
Install patched firmware to prevent unauthorized firmware installation via backup features.
  • Update firmware to a non-vulnerable version.
  • Verify firmware integrity before restoring backups.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-13722 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.