{"id":"CVE-2026-93862","state":"PUBLISHED","title":"Fireware OS Out-of-Bounds Read in FireCluster Sync Allows Denial of Service","description":"An out-of-bounds read vulnerability in the FireCluster Sync processing allows an attacker positioned on the cluster interconnect, such as a compromised cluster peer or an on-path network attacker, to repeatedly crash the firewall's cluster synchronization process by sending specially crafted network traffic, resulting in a sustained denial of service.","publishedAt":"2026-10-27T15:52:28.633Z","updatedAt":"2026-10-29T01:52:05.734Z","severity":{"score":7.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","source":"WatchGuard"},"assigner":"WatchGuard","products":["WatchGuard Fireware OS"],"affected":[{"vendor":"WatchGuard","product":"Fireware 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