{"id":"CVE-2021-1642","aliases":["EUVD-2021-7109","GHSA-w6rx-c2jm-w673"],"status":"published","title":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability","description":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00753,"percentile":0.55379,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2021-01-12T19:41:57Z","modified":"2026-06-17T03:32:13Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1803"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 1909"},{"vendor":"microsoft","product":"windows 10 version 2004"},{"vendor":"microsoft","product":"windows 10 version 20h2"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server version 2004"},{"vendor":"microsoft","product":"windows server version 20h2"},{"vendor":"microsoft","product":"windows server, version 1909 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1642","tags":["vendor-advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1642","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1642"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-027"},{"url":"https://github.com/advisories/GHSA-w6rx-c2jm-w673"}],"sources":{"cve":[{"id":"CVE-2021-1642","title":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability","description":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability","status":"published","published":"2021-01-12T19:41:57Z","modified":"2024-10-08T16:17:00.771Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-7109","description":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability","status":"published","published":"2021-01-12T19:41:57Z","modified":"2024-10-08T16:17:00Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T00:27:45.386789Z"}],"ghsa":[{"id":"GHSA-w6rx-c2jm-w673","title":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability This CVE ID is unique...","description":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-1685.","status":"published","published":"2022-05-24T17:38:43Z","modified":"2024-10-08T18:34:02Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:58:27.293589Z"}],"nvd":[{"id":"CVE-2021-1642","description":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability","status":"published","published":"2021-01-12T20:15:30.4Z","modified":"2026-06-17T03:32:13.323Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:06:49.284888Z"}]}}