{"id":"CVE-2021-33742","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-33742","summary":"Windows MSHTML Platform Remote Code Execution Vulnerability","details":"Windows MSHTML Platform Remote Code Execution Vulnerability","published":"2021-06-08T23:15:09.540","modified":"2026-06-17T03:55:08.593","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":{"score":0.59407,"percentile":0.99063,"asOf":"2026-09-11"},"cisaKev":null,"exploitsKnown":3,"affectedPackages":[],"fix":null,"references":[{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742"},{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-33742"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-06-17T03:55:08.593"}}