WatchGuard security advisory (AV26-649)

Serial number: AV26-649
Date: July 3, 2026

On July 2, 2026, WatchGuard published security advisories to address vulnerabilities in the following products:

• Fireware OS 2025.1 – version 2026.2 and prior
• Fireware OS 11.x - version 11.12.4_Update1 and prior
• Fireware OS 12.0 – version 12.12 and prior
• Fireware OS 12.5 – version 12.5.18 and prior
• Mobile VPN with SSL client for Windows – version 2026.2 and prior

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

• WatchGuard Firebox Race Condition and Use-After-Free in Mobile VPN with IKEv2 LDAP Authentication
• WatchGuard Mobile VPN with SSL Windows Client Local Privilege Escalation
• WatchGuard Security Advisories