CVE-2026-104381mediumCWE-294CWE-306CWE-345

CVE-2026-104381: medium-severity vulnerability in WatchGuard Fireware OS

Fireware OS Missing Authentication in FireCluster State Sync Allows BOVPN Tunnel Denial of Service

Published

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6epss 0.1%
A missing authentication vulnerability in Fireware OS's FireCluster state synchronization feature allows an unauthenticated attacker positioned on the cluster synchronization network segment to force premature VPN tunnel termination by sending crafted cluster synchronization traffic.
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Affected products
WatchGuard · Fireware OS