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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-18145

Fireware OS Stack-based Buffer Overflow in spamd Allows Remote Code Execution

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Status
Published
Published
Updated
Assigning organization
WatchGuard

Description

A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially crafted management request.

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