{"id":"CVE-2019-0966","aliases":["EUVD-2019-1701","GHSA-pq7q-rvhc-f994"],"status":"published","title":"A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to...","description":"A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka 'Windows Hyper-V Denial of Service Vulnerability'.","severity":{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0164,"percentile":0.7654,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2019-07-15T18:56:19Z","modified":"2026-06-17T02:09:18Z","products":[{"vendor":"microsoft","product":"windows"},{"vendor":"microsoft","product":"windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"windows server"},{"vendor":"microsoft","product":"windows server, version 1903 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0966","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-0966"},{"url":"https://github.com/advisories/GHSA-pq7q-rvhc-f994"}],"sources":{"cve":[{"id":"CVE-2019-0966","description":"A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka 'Windows Hyper-V Denial of Service Vulnerability'.","status":"published","published":"2019-07-15T18:56:19Z","modified":"2024-08-04T18:06:29.941Z","updated_at":"2026-11-02T14:32:24.110857Z"}],"euvd":[{"id":"EUVD-2019-1701","description":"A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka 'Windows Hyper-V Denial of Service Vulnerability'.","status":"published","published":"2019-07-15T18:56:19Z","modified":"2024-08-04T18:06:29Z","updated_at":"2026-11-03T03:07:00.044721Z"}],"ghsa":[{"id":"GHSA-pq7q-rvhc-f994","title":"A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to...","description":"A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka 'Windows Hyper-V Denial of Service Vulnerability'.","status":"published","published":"2022-05-24T16:50:14Z","modified":"2024-04-04T01:15:48Z","cvss":[{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:55:56.730661Z"}],"nvd":[{"id":"CVE-2019-0966","description":"A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka 'Windows Hyper-V Denial of Service Vulnerability'.","status":"published","published":"2019-07-15T19:15:15.95Z","modified":"2026-06-17T02:09:18.84Z","cvss":[{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":5.5,"vector":"AV:A/AC:L/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:05:19.195714Z"}]}}