{"id":"CVE-2026-80083","aliases":["EUVD-2026-73325","GHSA-f9h2-796f-g2cx"],"status":"published","title":"Windows Hyper-V Remote Code Execution Vulnerability","description":"Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00333,"percentile":0.26932,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-822"],"published":"2026-09-08T17:13:53Z","modified":"2026-11-10T21:32:42Z","products":[{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"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_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80083","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80083"},{"url":"https://github.com/advisories/GHSA-f9h2-796f-g2cx"}],"sources":{"cve":[{"id":"CVE-2026-80083","title":"Windows Hyper-V Remote Code Execution Vulnerability","description":"Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.","status":"published","published":"2026-09-08T17:13:53.617Z","modified":"2026-11-10T21:32:42.055Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-822"],"updated_at":"2026-11-10T22:48:54.14451Z"}],"euvd":[{"id":"EUVD-2026-73325","description":"Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.","status":"published","published":"2026-09-08T17:13:53Z","modified":"2026-11-10T21:32:42Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T22:23:50.994558Z"}],"ghsa":[{"id":"GHSA-f9h2-796f-g2cx","title":"Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code...","description":"Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.","status":"published","published":"2026-09-08T18:33:30Z","modified":"2026-09-08T18:34:20Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-822"],"updated_at":"2026-11-02T15:11:34.690977Z"}],"nvd":[{"id":"CVE-2026-80083","description":"Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.","status":"published","published":"2026-09-08T18:20:50.613Z","modified":"2026-09-10T15:14:14.58Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-822"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}