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vulnerabilities
NCSC-2026-0404 Vulnerabilities patched in WatchGuard Fireware OS
WatchGuard released patches for multiple vulnerabilities in Fireware OS affecting its firewall, access portal, and management components. The flaws range from stack-based buffer overflows and NULL pointer dereferences to path traversal, code injection, and authorization bypasses, with impacts including remote code execution, denial of service, and unauthorized access depending on the vulnerability and required privilege level.
Why it matters: Organizations running WatchGuard firewalls and access points should apply these patches immediately, as several vulnerabilities enable unauthenticated remote code execution or denial of service from network-adjacent attackers.
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- First seen by Cybersecurity Tracker