{"id":"CVE-2026-73010","aliases":["EUVD-2026-73775","GHSA-275q-g846-p5mh"],"status":"published","title":"Microsoft Failover Cluster Remote Code Execution Vulnerability","description":"Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00974,"percentile":0.62503,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-09-08T17:18:06Z","modified":"2026-11-10T21:37:10Z","products":[{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73010","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73010"},{"url":"https://github.com/advisories/GHSA-275q-g846-p5mh"}],"sources":{"cve":[{"id":"CVE-2026-73010","title":"Microsoft Failover Cluster Remote Code Execution Vulnerability","description":"Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:18:06.904Z","modified":"2026-11-10T21:37:10.261Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73775","description":"Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:18:06Z","modified":"2026-11-10T21:37:10Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-10T23:24:19.817203Z"}],"ghsa":[{"id":"GHSA-275q-g846-p5mh","title":"Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a...","description":"Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:33:17Z","modified":"2026-09-08T18:33:55Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:11:34.019342Z"}],"nvd":[{"id":"CVE-2026-73010","description":"Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:20:29.987Z","modified":"2026-09-17T20:05:35.01Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}