#VU119376 Buffer overflow in Fireware OS - CVE-2025-11838

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Main Vulnerability Database Vulnerabilities #VU119376

#VU119376 Buffer overflow in Fireware OS - CVE-2025-11838

Published: December 8, 2025


Vulnerability identifier: #VU119376
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2025-11838
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Fireware OS
Software vendor:
WatchGuard

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2. A remote attacker can trigger memory corruption and perform a denial of service attack. 


Remediation

Install updates from vendor's website.

External links