Warning: Multiple Vulnerabilities Identified in WatchGuard Fireware OS, Including Remote Code Execution , Patch Immediately!

**WatchGuard Fireware OS vulnerabilities:** Multiple high-severity vulnerabilities affect several Fireware OS release ranges — most critically CVE-2026-86131, an unauthenticated code-injection/RCE via BOVPN over TLS that can result in root-level compromise when a Firebox connects to a malicious VPN server; other issues include stack-buffer overflows (CVE-2026-81433, CVE-2026-18145) and resource exhaustion/DoS (CVE-2026-86104). Vendor patches are available and the CCB recommends prioritizing updates and increasing detection and monitoring, noting no observed exploitation in the wild to date.