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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-81851

Fireware OS Heap-Based Buffer Overflow in iked Allows Denial of Service

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Status
Published
Published
Updated
Assigning organization
WatchGuard

Description

A heap-based buffer overflow vulnerability in Fireware OS's iked process allows an authenticated administrator to crash the IKE daemon (iked), resulting in a denial of service, by saving a specially crafted configuration.

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

  • 2025.0 to < 2026.2.1affected
  • 12.0 to < 12.12.1affected

WatchGuard Fireware OS

Default version status: unaffected

  • 12.0 to < 12.11.9affected

WatchGuard Fireware OS

Default version status: unaffected

  • 12.0 to < 12.5.18affected

References