CyberICT

CVE-2026-86131

Watchguard · Published September 30, 2026

CVSS v3.1

CRITICAL
Patch availableGet patch

Description

A code injection vulnerability in WatchGuard Fireware OS's BOVPN Over TLS client configuration handling allows an attacker who controls the remote VPN server to execute arbitrary commands as root on the connecting Firebox.

Affected Products

  • Fireware < 12.5.21
  • Fireware < 12.12.3
  • Fireware < 2026.2.3
  • Fireware < 2026.3.2

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H