WatchGuard Firebox iked Out of Bounds Write Vulnerability
At a glance
Severity
CRITICAL 9.3
Exploitation
Known exploited (CISA KEV) · added 2025-12-19 Exploited per ENISA since 2025-12-19
EPSS
EPSS 29.42 % · percentile 98 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
WatchGuard
NVD status
Analyzed
Description
An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.
If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured.
