Fireware OS Missing Authentication in FireCluster State Sync Allows BOVPN Tunnel Denial of Service
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2026.4, 12.12.4, 12.5.22
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Fireware OS, the operating system for WatchGuard Firebox firewalls, is affected when its FireCluster state synchronization feature is in use. An unauthenticated attacker on the cluster synchronization network segment could send crafted traffic that causes branch office VPN tunnels to shut down early, disrupting VPN connectivity.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
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.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- WatchGuard Fireware OS
From 2025.1 · fixed in 2026.4; From 12.0 · fixed in 12.12.4
- WatchGuard Fireware OS
From 12.0 · fixed in 12.5.22