{"id":"CVE-2021-40450","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-40450","summary":"Win32k Elevation of Privilege Vulnerability","details":"Win32k Elevation of Privilege Vulnerability","published":"2021-10-13T01:15:09.750","modified":"2026-06-17T04:06:56.627","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.02076,"percentile":0.80448,"asOf":"2026-09-15"},"cisaKev":null,"exploitsKnown":3,"affectedPackages":[],"fix":null,"references":[{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450"},{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-06-17T04:06:56.627"}}