CVE-2026-111107
A NULL pointer dereference vulnerability in WatchGuard Fireware OS’s management interface allows a…
- Risk score
- 57/100
- CVSS
- 8.7 v4.0
- Published
- 27 Oct 2026
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What to know
- What it is
- 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 ses…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.7 high
- Remotely exploitable without logging in
References
Original description
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.
Last activity 27 Oct 2026. Patch Forecast updates every hour.