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CVE-2025-11838

WatchGuard Firebox iked Memory Corruption Vulnerability

Published: Dec 4, 2025Updated: Dec 16, 2025 Sources: CVE List NVD BDUCWE-763
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.4%
Top 67.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-763

Affected Products

Fireware OSWatchGuardNetworking Infrastructure
Fireware OSWatchguard Technologies Inc.Networking Infrastructure
firewarewatchguardNetworking Infrastructure
watchguardcommercialUSNetworking Infrastructure
watchguard technologies inc.commercialUSNetworking Infrastructureaka watchguard technologies inc.

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

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

Timeline

Published
Dec 4, 2025
Last Updated
Dec 16, 2025

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