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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-93857

Fireware OS Pre-Authentication Stack Buffer Overflow in SIP Proxy Allows Remote Code Execution

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Status
Published
Published
Updated
Assigning organization
WatchGuard

Description

A stack-based buffer overflow vulnerability in Fireware OS's SIP proxy allows a remote, unauthenticated attacker to execute arbitrary code by sending a specially crafted request through a policy that uses the SIP proxy.

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 < 2026.4affected
  • 12.0 to < 12.12.4affected

WatchGuard Fireware OS

Default version status: unaffected

  • 12.0 to < 12.5.22affected

References