{"id":"CVE-2021-28474","aliases":["EUVD-2021-15152","GHSA-f4c7-7cmx-q7fx"],"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":"2026-11-09","score":0.50768,"percentile":0.98932,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-436","CWE-77"],"published":"2021-05-11T19:11:16Z","modified":"2026-06-17T03:46:25Z","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":"sharepoint_foundation"},{"vendor":"microsoft","product":"sharepoint_server"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28474","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-574/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28474"},{"url":"https://github.com/advisories/GHSA-f4c7-7cmx-q7fx"}],"sources":{"cve":[{"id":"CVE-2021-28474","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability","status":"published","published":"2021-05-11T19:11:16Z","modified":"2024-08-03T21:47:32.625Z","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":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-15152","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability","status":"published","published":"2021-05-11T19:11:16Z","modified":"2024-08-03T21:47:32Z","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":"2026-11-03T03:24:46.751124Z"}],"ghsa":[{"id":"GHSA-f4c7-7cmx-q7fx","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability","status":"published","published":"2022-05-24T19:02:04Z","modified":"2023-08-10T05:04:37Z","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-77","CWE-436"],"updated_at":"2026-11-02T14:54:44.654498Z"}],"nvd":[{"id":"CVE-2021-28474","description":"Microsoft SharePoint Server Remote Code Execution Vulnerability","status":"published","published":"2021-05-11T19:15:09.093Z","modified":"2026-06-17T03:46:25.627Z","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":"secondary"},{"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-436"],"updated_at":"2026-11-02T14:06:53.343329Z"}]}}