Description
A heap-based buffer overflow vulnerability in Fireware OS's iked process allows an authenticated administrator to crash the IKE daemon (iked), resulting in a denial of service, by saving a specially crafted configuration.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WatchGuard | Fireware OS | 2025.0 – < 2026.2.1, 12.0 – < 12.12.1, 12.0 – < 12.11.9, 12.0 – < 12.5.18 | 2026.2.1 |
Advisories 1
- WID-SEC-2026-3068 WatchGuard Firebox OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 9, 2026
References
- https://psirt.watchguard.com/CVE-2026-81851 vendor-advisory