CVE-2026-19318

A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows remote unauthenticated attackers to execute arbitrary code through specially crafted network traffic. This critical vulnerability, with a CVSS score of 9.3, poses a significant risk to any organization using affected versions of Fireware OS. Organizations utilizing WatchGuard Fireware should prioritize immediate patching and mitigation efforts to safeguard their systems against potential exploitation.