{"id":"CVE-2021-27056","aliases":["EUVD-2021-13827","GHSA-4w52-x9c4-c723"],"status":"published","title":"Microsoft PowerPoint Remote Code Execution Vulnerability","description":"Microsoft PowerPoint 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":"2026-11-12","score":0.04302,"percentile":0.91275,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-03-11T15:48:19Z","modified":"2026-08-19T18:32:36Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office 2019"},{"vendor":"microsoft","product":"microsoft powerpoint 2010 service pack 2"},{"vendor":"microsoft","product":"microsoft powerpoint 2013 service pack 1"},{"vendor":"microsoft","product":"microsoft powerpoint 2016"},{"vendor":"microsoft","product":"office"},{"vendor":"microsoft","product":"powerpoint"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27056","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27056","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-333/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27056"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-333"},{"url":"https://github.com/advisories/GHSA-4w52-x9c4-c723"}],"sources":{"cve":[{"id":"CVE-2021-27056","title":"Microsoft PowerPoint Remote Code Execution Vulnerability","description":"Microsoft PowerPoint Remote Code Execution Vulnerability","status":"published","published":"2021-03-11T15:48:19Z","modified":"2026-08-19T16:30:45.256Z","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":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-13827","description":"Microsoft PowerPoint Remote Code Execution Vulnerability","status":"published","published":"2021-03-11T15:48:19Z","modified":"2026-08-19T16:30:45Z","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-4w52-x9c4-c723","title":"Microsoft PowerPoint Remote Code Execution Vulnerability","description":"Microsoft PowerPoint Remote Code Execution Vulnerability","status":"published","published":"2022-05-24T17:44:23Z","modified":"2026-08-19T18:32:36Z","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":"2026-11-02T15:10:42.300371Z"}],"nvd":[{"id":"CVE-2021-27056","description":"Microsoft PowerPoint Remote Code Execution Vulnerability","status":"published","published":"2021-03-11T16:15:17.397Z","modified":"2026-08-19T17:17:49.24Z","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"}]}}