{"id":"CVE-2020-16908","aliases":["EUVD-2020-8866","GHSA-x4gf-jp8w-7474"],"status":"published","title":"Windows Setup Elevation of Privilege Vulnerability","description":"\u003cp\u003eAn elevation of privilege vulnerability exists in Windows Setup in the way it handles directories.\u003c/p\u003e\n\u003cp\u003eA locally authenticated attacker could run arbitrary code with elevated system privileges. After successfully exploiting the vulnerability, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by ensuring Windows Setup properly handles directories.\u003c/p\u003e","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:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00955,"percentile":0.6169,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2020-10-16T22:17:44Z","modified":"2026-06-17T02:58:14Z","products":[{"vendor":"microsoft","product":"windows 10 version 1803"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for arm64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1909"},{"vendor":"microsoft","product":"windows 10 version 2004"},{"vendor":"microsoft","product":"windows_10"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16908","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-16908"},{"url":"https://github.com/advisories/GHSA-x4gf-jp8w-7474"}],"sources":{"cve":[{"id":"CVE-2020-16908","title":"Windows Setup Elevation of Privilege Vulnerability","description":"\u003cp\u003eAn elevation of privilege vulnerability exists in Windows Setup in the way it handles directories.\u003c/p\u003e\n\u003cp\u003eA locally authenticated attacker could run arbitrary code with elevated system privileges. After successfully exploiting the vulnerability, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by ensuring Windows Setup properly handles directories.\u003c/p\u003e","status":"published","published":"2020-10-16T22:17:44Z","modified":"2024-11-15T16:59:48.937Z","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:P/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:59.116379Z"}],"euvd":[{"id":"EUVD-2020-8866","description":"\u003cp\u003eAn elevation of privilege vulnerability exists in Windows Setup in the way it handles directories.\u003c/p\u003e\n\u003cp\u003eA locally authenticated attacker could run arbitrary code with elevated system privileges. After successfully exploiting the vulnerability, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by ensuring Windows Setup properly handles directories.\u003c/p\u003e","status":"published","published":"2020-10-16T22:17:44Z","modified":"2024-11-15T16:59:48Z","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:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T00:04:59.542658Z"}],"ghsa":[{"id":"GHSA-x4gf-jp8w-7474","title":"An elevation of privilege vulnerability exists in Windows Setup in the way it handles directories...","description":"An elevation of privilege vulnerability exists in Windows Setup in the way it handles directories.A locally authenticated attacker could run arbitrary code with elevated system privileges, aka 'Windows Setup Elevation of Privilege Vulnerability'.","status":"published","published":"2022-05-24T17:30:56Z","modified":"2024-01-09T05:05:19Z","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":"2026-11-02T14:55:22.44362Z"}],"nvd":[{"id":"CVE-2020-16908","description":"\u003cp\u003eAn elevation of privilege vulnerability exists in Windows Setup in the way it handles directories.\u003c/p\u003e\n\u003cp\u003eA locally authenticated attacker could run arbitrary code with elevated system privileges. After successfully exploiting the vulnerability, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by ensuring Windows Setup properly handles directories.\u003c/p\u003e","status":"published","published":"2020-10-16T23:15:14.133Z","modified":"2026-06-17T02:58:14.543Z","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":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:06:19.351389Z"}]}}