Findings

CVE-2026-18145

ZDI-26-750: WatchGuard FireWare OS spamd statushdlr Stack-based Buffer Overflow Remote Code Execution Vulnerability

Published Sep 30, 2026

This vulnerability allows remote attackers to execute arbitrary code on affected installations of WatchGuard FireWare OS. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-18145.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 30, 2026 · Catalog

    Detected

    This vulnerability allows remote attackers to execute arbitrary code on affected installations of WatchGuard FireWare OS. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-18145.

Sources

  • CVE.orgCVE-2026-18145

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2026-18145

    30-day exploitation probability 0.4%

    first.org
  • This vulnerability allows remote attackers to execute arbitrary code on affected installations of WatchGuard FireWare OS. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-18145.

    zerodayinitiative.com