{"id":"CVE-2021-26902","aliases":["EUVD-2021-13686","GHSA-8wmr-chfq-6mfm"],"status":"published","title":"HEVC Video Extensions Remote Code Execution Vulnerability","description":"HEVC Video Extensions Remote Code Execution Vulnerability","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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":0.05871,"percentile":0.93268,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-03-11T15:44:16Z","modified":"2026-08-19T18:31:33Z","products":[{"vendor":"microsoft","product":"hevc video extensions"},{"vendor":"microsoft","product":"high_efficiency_video_coding"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26902","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26902","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26902"},{"url":"https://github.com/advisories/GHSA-8wmr-chfq-6mfm"}],"sources":{"cve":[{"id":"CVE-2021-26902","title":"HEVC Video Extensions Remote Code Execution Vulnerability","description":"HEVC Video Extensions Remote Code Execution Vulnerability","status":"published","published":"2021-03-11T15:44:16Z","modified":"2026-08-19T16:30:39.757Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13686","description":"HEVC Video Extensions Remote Code Execution Vulnerability","status":"published","published":"2021-03-11T15:44:16Z","modified":"2026-08-19T16:30:39Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:01:42.411264Z"}],"ghsa":[{"id":"GHSA-8wmr-chfq-6mfm","title":"HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021...","description":"HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062.","status":"published","published":"2022-05-24T17:44:22Z","modified":"2026-08-19T18:31:33Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:10:40.42434Z"}],"nvd":[{"id":"CVE-2021-26902","description":"HEVC Video Extensions Remote Code Execution Vulnerability","status":"published","published":"2021-03-11T16:15:16.723Z","modified":"2026-08-19T17:17:47.297Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:50.805771Z"}]}}