WatchGuard Warns of Active Exploitation of Critical Fireware OS VPN Vulnerability
Dec 19, 2025
Vulnerability / Network Security
WatchGuard has released fixes to address a critical security flaw in Fireware OS that it said has been exploited in real-world attacks. Tracked as CVE-2025-14733 (CVSS score: 9.3), the vulnerability has been described as a case of out-of-bounds write affecting the iked process that could allow a remote unauthenticated attacker to execute arbitrary code. "This vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer," the company said in a Thursday advisory. "If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured." The vulnerability impacts the following versions of Fireware OS - 2025.1 - Fixed in 2025.1.4 12.x - Fixed in 12.11.6 1...