CVE-2026-111107

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.

Score

CVSS 4.0 8.7 High

Status

Awaiting Analysis - 5d1c2695-1a31-4499-88ae-e847036fd7e3

Published

2026-10-27

Last modified

2026-10-28

Weaknesses

CWE-1286, CWE-248, CWE-476

Affected products

• Fireware Os (Watchguard)

References

• https://psirt.watchguard.com/CVE-2026-111107