CVE-2025-11838

HIGH

WatchGuard Fireware 12.6.1-12.11.4 & 2025.1-2025.1.2 - DoS via IKEv2 VPN Memory Corruption

Title source: llm
STIX 2.1

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)

Core 1

Scores

CVSS v3 7.5
EPSS 0.0041
EPSS Percentile 32.8%
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