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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-86134

Fireware OS Pre-Authentication NULL Pointer Dereference Allows Remote Denial of Service

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Status
Published
Published
Updated
Assigning organization
WatchGuard

Description

A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the management daemon by sending a specially request to the login interface, resulting in a denial of service.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

WatchGuard Fireware OS

Default version status: unaffected

  • 2026.3 to < 2026.3.2affected
  • 2025.0 to < 2026.2.3affected
  • 12.0 to < 12.12.3affected

WatchGuard Fireware OS

Default version status: unaffected

  • 12.0 to < 12.5.21affected

References