CVE-2026-13722: CWE-347 in WatchGuard Fireware OS
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.
AI Analysis
Technical Summary
WatchGuard Fireware OS contains a firmware validation bypass vulnerability (CWE-347) in its backup/restore feature. An authenticated administrator can exploit this flaw to install a tampered firmware image by bypassing the firmware validation process during backup image processing. This vulnerability affects versions 11.0, 12.0, 12.5, and 2025.1 of Fireware OS. The CVSS 4.0 base score is 8.6, indicating high severity. No vendor advisory or patch information is currently available, and there are no known exploits in the wild.
Potential Impact
An attacker with authenticated administrator privileges can install unauthorized, tampered firmware images on affected Fireware OS devices. This could lead to complete compromise of the device, unauthorized control, and potential disruption of network security functions. The vulnerability undermines the integrity of the firmware update process.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict administrative access to trusted personnel only and monitor for any unusual firmware update activity. Avoid using the backup/restore feature for firmware updates if possible.
CVE-2026-13722: CWE-347 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.
CVSS v4.0
Score 8.6high
Affected software
pkg:github/watchguard/fireware-osRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
WatchGuard Fireware OS contains a firmware validation bypass vulnerability (CWE-347) in its backup/restore feature. An authenticated administrator can exploit this flaw to install a tampered firmware image by bypassing the firmware validation process during backup image processing. This vulnerability affects versions 11.0, 12.0, 12.5, and 2025.1 of Fireware OS. The CVSS 4.0 base score is 8.6, indicating high severity. No vendor advisory or patch information is currently available, and there are no known exploits in the wild.
Potential Impact
An attacker with authenticated administrator privileges can install unauthorized, tampered firmware images on affected Fireware OS devices. This could lead to complete compromise of the device, unauthorized control, and potential disruption of network security functions. The vulnerability undermines the integrity of the firmware update process.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict administrative access to trusted personnel only and monitor for any unusual firmware update activity. Avoid using the backup/restore feature for firmware updates if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WatchGuard
- Date Reserved
- 2026-06-29T14:21:49.222Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a46f28127e9c797194ffff0
Added to database: 07/02/2026, 23:21:37 UTC
Last enriched: 08/11/2026, 13:55:38 UTC
Last updated: 08/14/2026, 16:38:29 UTC
Views: 90
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