CVE-2025-13940

04.12.2025, 22:15

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.This issue affects Fireware OS: from 12.8.1 through 12.11.4, from 2025.1 through 2025.1.2.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	5.5 MEDIUM	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
WatchGuard	CNA	---				---
CISA-ADP	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 2%

Vendor	Product	Version
watchguard	fireware	2025.1 ≤ 𝑥 < 2025.1.3
watchguard	fireware	12.8.1 ≤ 𝑥 < 12.11.5

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-440 - Expected Behavior Violation
A feature, API, or function does not perform according to its specification.

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00026