WatchGuard Issues Emergency Patches for Fireware OS Addressing 11 Vulnerabilities Including Pre-Auth RCE
WatchGuard Technologies released security updates for its Firebox firewall products on August 27, 2026, addressing 11 vulnerabilities in Fireware OS. Nine of the flaws affect the IKE daemon (iked) and can lead to buffer overflows, out-of-bounds reads, and double-free conditions when processing crafted IKE messages. Three CVEs (CVE-2026-19313, CVE-2026-19315, and CVE-2026-19318) may allow unauthenticated remote code execution due to memory corruption, with CVE-2026-19318 requiring the IKE payload diagnostic log to be enabled. An additional flaw, CVE-2026-13086, resides in the deprecated Mobile Security epm service and permits adjacent-network attackers with access to a trusted interface to execute arbitrary code as root without authentication. The company urges immediate application of Fireware versions 2026.2.2, 12.12.2, and 12.5.20.
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