CVE-2025-11838

HIGH

Watchguard Fireware < 2025.1.3 - Denial of Service

Title source: rule

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. This vulnerability affects Fireware OS 12.6.1 up to and including 12.11.4 and 2025.1 up to and including 2025.1.2.

References (1)

[Vendor Advisory] https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00018

Scores

CVSS v3 7.5

EPSS 0.0015

EPSS Percentile 35.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-763

Status published

Products (1)

watchguard/fireware 2025.1 - 2025.1.3

Published Dec 04, 2025

Tracked Since Feb 18, 2026