CVE-2025-11838

High

Open

TLP:CLEAR

WatchGuard Firebox iked Memory Corruption Vulnerability

NVD CVE.org

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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.

Details

CVSS Score: 8.7
EPSS Score ⓘ: 0.48%

39.6th percentile
CVSS Vector: 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
Confidence: 90%
Published: Dec 4, 2025
Last Modified: Aug 10, 2026

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