CVE-2025-11838

WatchGuard Firebox iked Memory Corruption Vulnerability

State: Published
Severity: 8.7 High
Published: Dec 4, 2025
Updated: Aug 10, 2026
Reserved: Oct 16, 2025

Description

A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	WatchGuard

Weaknesses

CWE-763

Affected Products

Product	Versions
Fireware OSWatchGuard	2025.1 through 2025.1.3Affected 12.6.1 through 12.11.5Affected

References

https://psirt.watchguard.com/CVE-2025-11838vendor-advisory
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018

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