CVE-2026-111107
CVE-2026-111107 · Fireware OS NULL Pointer Dereference in Management Interface Allows Unauthenticated Denial of Service
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A NULL pointer dereference vulnerability in WatchGuard Fireware OS’s management interface allows a remote, unauthenticated attacker with network access to the management interface to crash the management service by sending a specially crafted login request. Repeated exploitation terminates all active administrator sessions and in-progress management operations and can prevent management of the device. Traffic processing is not affected.
CVSS 8.7 · High · EPSS 0.4% · Fix available
- Published
- Updated
Affected products and versions
fireware os
- Versions
- ≥ 2025.1, < 2026.4: Affected (custom)
- ≥ 12.0, < 12.12.4: Affected (custom)
Update to 12.12.4; Update to 2026.4
fireware os
- Versions
- ≥ 12.0, < 12.5.22: Affected (custom)
Update to 12.5.22