{"id":"CVE-2021-42309","aliases":["EUVD-2021-29284","GHSA-vxx8-qm59-23fh"],"status":"published","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.02928,"percentile":0.87244,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732","CWE-94"],"published":"2021-12-15T14:14:56Z","modified":"2026-06-17T04:09:37Z","products":[{"vendor":"microsoft","product":"microsoft sharepoint enterprise server 2016"},{"vendor":"microsoft","product":"microsoft sharepoint foundation 2013 service pack 1"},{"vendor":"microsoft","product":"microsoft sharepoint server 2019"},{"vendor":"microsoft","product":"microsoft sharepoint server subscription edition"},{"vendor":"microsoft","product":"sharepoint_enterprise_server"},{"vendor":"microsoft","product":"sharepoint_foundation"},{"vendor":"microsoft","product":"sharepoint_server"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42309","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-22-074/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42309"},{"url":"https://github.com/advisories/GHSA-vxx8-qm59-23fh"}],"sources":{"cve":[{"id":"CVE-2021-42309","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability","status":"published","published":"2021-12-15T14:14:56Z","modified":"2024-08-04T03:30:38.283Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29284","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability","status":"published","published":"2021-12-15T14:14:56Z","modified":"2024-08-04T03:30:38Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T03:24:16.217613Z"}],"ghsa":[{"id":"GHSA-vxx8-qm59-23fh","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability This CVE ID is unique from CVE...","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-42294.","status":"published","published":"2021-12-16T00:02:07Z","modified":"2024-01-05T05:05:31Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-94","CWE-732"],"updated_at":"2026-11-02T14:55:20.27804Z"}],"nvd":[{"id":"CVE-2021-42309","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability","status":"published","published":"2021-12-15T15:15:08.977Z","modified":"2026-06-17T04:09:37.5Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-94","CWE-732"],"updated_at":"2026-11-02T14:07:02.189991Z"}]}}