
Ransomware Gangs Target WatchGuard Firebox Vulnerability: 9,000 Devices Still at Risk
CISA confirmed that ransomware gangs are actively exploiting CVE-2025-14733, a critical remote code execution vulnerability in WatchGuard Firebox firewalls. The flaw, first disclosed in December 2025, stems from an out-of-bounds write vulnerability affecting firewalls with IKEv2 VPN configurations. Despite patches being available for nine months, nearly 9,000 vulnerable devices remain exposed online according to Shadowserver monitoring, down from an initial 115,000. The vulnerability allows unauthenticated attackers to execute malicious code remotely with low complexity, making it an attractive target for threat actors. This incident highlights the persistent challenge of network perimeter security in an era where traditional firewalls face sophisticated exploitation techniques. With WatchGuard serving over 250,000 organizations through 17,000 resellers globally, the widespread exposure of this vulnerability demonstrates how legacy security infrastructure becomes a liability when not properly maintained and patched.
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