CVE-2026-111107High· 8.7▾ TwilightA 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 cr…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 47.8 · likelihood 0 · exploitation 0
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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.
fireware_os >= 2025.1 < 2026.4fireware_os >= 12.0 < 12.12.4fireware_os >= 12.0 < 12.5.22Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22
Connected by shared product, vendor, weakness, or advisory.
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