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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-13371

WatchGuard Firebox Management Web UI Denial of Service via Unsafe Deserialization

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Status
Published
Published
Updated
Assigning organization
WatchGuard

Description

An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.

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

  • 2025.1 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 < 12.5.19affected

References