Fireware OS is a technology platform tracked across 4 threat clusters and 12 intelligence report mentions on ThreatCluster. First observed November 13, 2025; most recent activity July 6, 2026.
Fireware OS is WatchGuard’s firewall operating system powering Firebox appliances, delivering core security services such as traffic filtering, VPN, and threat prevention. Recent reporting shows multiple critical vulnerabilities in Fireware OS being actively exploited in attacks, prompting urgent patches and advisories from authorities like CISA.
WatchGuard Technologies released patches on July 2, 2026, for a critical remote code execution vulnerability (CVE-2026-13368) affecting all supported Firebox firewall models. This flaw, linked to a race condition in the…
WatchGuard has issued a warning about a critical remote code execution vulnerability, tracked as CVE-2025-14733, affecting its Firebox firewalls running Fireware OS 11.x and later. The flaw allows unauthenticated…
A critical vulnerability (CVE-2025-9242) in WatchGuard Firebox OS allows remote unauthenticated attackers to execute arbitrary code. Affected versions include Fireware OS 11.x, 12.x, and 2025.1. The U.S. Cybersecurity &…
A critical vulnerability (CVE-2025-9242) in WatchGuard's Fireware OS has been identified, allowing remote unauthenticated attackers to execute arbitrary code on over 54,000 Firebox devices globally. The U.S.…