{"id":"CVE-2021-42287","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-42287","summary":"Active Directory Domain Services Elevation of Privilege Vulnerability","details":"Active Directory Domain Services Elevation of Privilege Vulnerability","published":"2021-11-10T01:19:46.137","modified":"2026-08-19T19:23:00.553","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.7717,"percentile":0.99525,"asOf":"2026-09-15"},"cisaKev":null,"exploitsKnown":13,"affectedPackages":[],"fix":null,"references":[{"type":"FIX","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42287"},{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42287"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-42287"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-19T19:23:00.553"}}