CVE-2026-13722: CWE-347 Improper Verification of Cryptographic Signature in WatchGuard Fireware OS
CVE-2026-13722 is a high-severity vulnerability in WatchGuard Fireware OS that allows an authenticated administrator to bypass firmware validation when processing backup images via the backup/restore feature. This flaw enables installation of tampered firmware images. The vulnerability affects Fireware OS versions 11.0 through 11.12.4_Update1, 12.0 through 12.12, and 2025.1 through 2025.6.2. No official patch or remediation guidance has been published yet.
AI Analysis
Technical Summary
WatchGuard Fireware OS contains an improper verification of cryptographic signatures (CWE-347) in its backup/restore feature. Specifically, the firmware validation process can be bypassed when processing a backup image, allowing an authenticated administrator to install a maliciously altered firmware image. This vulnerability affects multiple versions of Fireware OS, including 11.0 up to 11.12.4_Update1, 12.0 up to 12.12, and 2025.1 up to 2025.6.2. The CVSS 4.0 base score is 8.6, indicating high severity. No vendor advisory or patch is currently available to address this issue.
Potential Impact
An authenticated administrator can exploit this vulnerability to install tampered firmware images, potentially compromising the integrity and security of the affected Fireware OS devices. This could lead to unauthorized control or persistent compromise of the device firmware.
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 activity related to firmware backup and restore operations.
CVE-2026-13722: CWE-347 Improper Verification of Cryptographic Signature in WatchGuard Fireware OS
Description
CVE-2026-13722 is a high-severity vulnerability in WatchGuard Fireware OS that allows an authenticated administrator to bypass firmware validation when processing backup images via the backup/restore feature. This flaw enables installation of tampered firmware images. The vulnerability affects Fireware OS versions 11.0 through 11.12.4_Update1, 12.0 through 12.12, and 2025.1 through 2025.6.2. No official patch or remediation guidance has been published yet.
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 an improper verification of cryptographic signatures (CWE-347) in its backup/restore feature. Specifically, the firmware validation process can be bypassed when processing a backup image, allowing an authenticated administrator to install a maliciously altered firmware image. This vulnerability affects multiple versions of Fireware OS, including 11.0 up to 11.12.4_Update1, 12.0 up to 12.12, and 2025.1 up to 2025.6.2. The CVSS 4.0 base score is 8.6, indicating high severity. No vendor advisory or patch is currently available to address this issue.
Potential Impact
An authenticated administrator can exploit this vulnerability to install tampered firmware images, potentially compromising the integrity and security of the affected Fireware OS devices. This could lead to unauthorized control or persistent compromise of the device firmware.
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 activity related to firmware backup and restore operations.
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: 07/02/2026, 23:36:28 UTC
Last updated: 07/02/2026, 23:37:59 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.