{"id":"CVE-2021-24075","aliases":["EUVD-2021-10991","GHSA-36gw-qm9m-236g"],"status":"published","title":"Microsoft Windows VMSwitch Denial of Service Vulnerability","description":"Microsoft Windows VMSwitch Denial of Service Vulnerability","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.02523,"percentile":0.85092,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-02-25T23:01:38Z","modified":"2026-06-17T03:39:14Z","products":[{"vendor":"microsoft","product":"windows 10 version 2004"},{"vendor":"microsoft","product":"windows 10 version 20h2"},{"vendor":"microsoft","product":"windows server version 2004"},{"vendor":"microsoft","product":"windows server version 20h2"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_server_2016"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24075","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24075"},{"url":"https://github.com/advisories/GHSA-36gw-qm9m-236g"}],"sources":{"cve":[{"id":"CVE-2021-24075","title":"Microsoft Windows VMSwitch Denial of Service Vulnerability","description":"Microsoft Windows VMSwitch Denial of Service Vulnerability","status":"published","published":"2021-02-25T23:01:38Z","modified":"2024-08-03T19:21:18.246Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-10991","description":"Microsoft Windows VMSwitch Denial of Service Vulnerability","status":"published","published":"2021-02-25T23:01:38Z","modified":"2024-08-03T19:21:18Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-03T03:24:59.661237Z"}],"ghsa":[{"id":"GHSA-36gw-qm9m-236g","title":"Windows Network File System Denial of Service Vulnerability","description":"Windows Network File System Denial of Service Vulnerability","status":"published","published":"2022-05-24T17:43:16Z","modified":"2024-01-07T05:05:28Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T14:55:20.878476Z"}],"nvd":[{"id":"CVE-2021-24075","description":"Microsoft Windows VMSwitch Denial of Service Vulnerability","status":"published","published":"2021-02-25T23:15:14.647Z","modified":"2026-06-17T03:39:14.29Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:N/A:P","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:06:50.399901Z"}]}}