CVE-2025-11838: WatchGuard Firebox iked Memory Corruption Vulnerability
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
WatchGuard Fireware OSto a version that resolves this vulnerability.Fixed in 2025.1.3 - Upgrade
Upgrade
WatchGuard Fireware OSto a version that resolves this vulnerability.Fixed in 12.11.5 - Compensating control
Mitigate exposure for Mobile User VPN (IKEv2) and Branch Office VPN (IKEv2) when configured with a dynamic gateway peer by changing the VPN gateway peer configuration so it is not dynamic (use a static peer, where applicable).
Event History
Frequently Asked Questions
What is the severity of CVE-2025-11838?
CVE-2025-11838 is classified as a high severity vulnerability due to the potential for triggering a Denial of Service (DoS).
How do I fix CVE-2025-11838?
To fix CVE-2025-11838, update WatchGuard Fireware OS to the latest version that addresses the vulnerability.
What type of vulnerability is CVE-2025-11838?
CVE-2025-11838 is a memory corruption vulnerability that affects the Mobile User VPN and Branch Office VPN functionalities.
Who is affected by CVE-2025-11838?
CVE-2025-11838 affects users of WatchGuard Fireware OS versions between 12.0 and 12.11.4, as well as versions 2025.1 to 2025.1.2.
Can CVE-2025-11838 be exploited remotely?
Yes, CVE-2025-11838 can be exploited remotely by an unauthenticated attacker targeting the configurations with dynamic gateway peers.