WatchGuard Addresses Actively Exploited Firewall Zero-Day Vulnerability
Network Firewalls, Network Access Control, Security Operations 117,000 Unpatched Firewalls Vulnerable to Exploitation Mathew J. Schwartz (euroinfosec) • December 22, 2025 Image: Shutterstock In a concerning development, a zero-day vulnerability affecting WatchGuard Firebox firewalls is under active exploitation by cybercriminals aiming to execute remote code. A patch has been released…