{"id":"CVE-2021-34517","aliases":["EUVD-2021-21171","GHSA-cf5c-cp75-9wvg"],"status":"published","title":"Microsoft SharePoint Server Spoofing Vulnerability","description":"Microsoft SharePoint Server Spoofing Vulnerability","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01966,"percentile":0.80635,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-07-14T17:54:32Z","modified":"2026-08-10T18:30:46Z","products":[{"vendor":"microsoft","product":"microsoft sharepoint enterprise server 2013 service pack 1"},{"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://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34517","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34517","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34517"},{"url":"https://github.com/advisories/GHSA-cf5c-cp75-9wvg"}],"sources":{"cve":[{"id":"CVE-2021-34517","title":"Microsoft SharePoint Server Spoofing Vulnerability","description":"Microsoft SharePoint Server Spoofing Vulnerability","status":"published","published":"2021-07-14T17:54:32Z","modified":"2026-08-10T15:12:01.721Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21171","description":"Microsoft SharePoint Server Spoofing Vulnerability","status":"published","published":"2021-07-14T17:54:32Z","modified":"2026-08-10T15:12:01Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T18:02:03.704262Z"}],"ghsa":[{"id":"GHSA-cf5c-cp75-9wvg","title":"Microsoft SharePoint Server Spoofing Vulnerability","description":"Microsoft SharePoint Server Spoofing Vulnerability","status":"published","published":"2022-05-24T19:07:49Z","modified":"2026-08-10T18:30:46Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:10:14.704025Z"}],"nvd":[{"id":"CVE-2021-34517","description":"Microsoft SharePoint Server Spoofing Vulnerability","status":"published","published":"2021-07-14T18:15:12.157Z","modified":"2026-08-10T16:17:56.1Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:55.747384Z"}]}}