Description
A missing authentication vulnerability in the Fireware OS FireCluster synchronization daemon allows a remote, unauthenticated attacker to invoke privileged system-level administrative actions by sending a specially crafted request to the FireCluster management IP when the clustering feature is enabled.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WatchGuard | Fireware OS | 2025.1 – < 2026.4, 12.0 – < 12.12.4, 12.0 – < 12.5.22 | 2026.4 |
Advisories 1
- WID-SEC-2026-4209 WatchGuard Fireware OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 27, 2026
References
- https://psirt.watchguard.com/CVE-2026-93865 vendor-advisory