Medium [CVE-2025-13940] WatchGuard Firebox Boot Time System Integrity Check Bypass
This medium-severity WatchGuard advisory covers CVE-2025-13940 affecting Fireware OS.
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Summary
An Expected Behavior Violation [CWE-440] vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS boot time system integrity check and prevent the Firebox from shutting down in the event of a system integrity check failure.
The on-demand system integrity check in the Fireware Web UI will correctly show a failed system integrity check message in the event of a failure.
- Fireware OS 2025.1 before 2025.1.3
- Fireware OS 12.8.1 before 12.11.5
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 2025.1.3
- 12.11.5
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 2025.1.3, 12.11.5. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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