{"id":"CVE-2021-31173","aliases":["EUVD-2021-18086","GHSA-9hc6-hcmg-qj26"],"status":"published","title":"Microsoft SharePoint Server Information Disclosure Vulnerability","description":"Microsoft SharePoint Server Information Disclosure Vulnerability","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.02079,"percentile":0.81759,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2021-05-11T19:11:24Z","modified":"2026-06-17T03:51:22Z","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-2021-31173","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31173"},{"url":"https://github.com/advisories/GHSA-9hc6-hcmg-qj26"}],"sources":{"cve":[{"id":"CVE-2021-31173","title":"Microsoft SharePoint Server Information Disclosure Vulnerability","description":"Microsoft SharePoint Server Information Disclosure Vulnerability","status":"published","published":"2021-05-11T19:11:24Z","modified":"2025-02-28T19:58:00.25Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:33:05.665371Z"}],"euvd":[{"id":"EUVD-2021-18086","description":"Microsoft SharePoint Server Information Disclosure Vulnerability","status":"published","published":"2021-05-11T19:11:24Z","modified":"2025-02-28T19:58:00Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T20:53:19.492993Z"}],"ghsa":[{"id":"GHSA-9hc6-hcmg-qj26","title":"Microsoft SharePoint Server Information Disclosure Vulnerability","description":"Microsoft SharePoint Server Information Disclosure Vulnerability","status":"published","published":"2022-05-24T19:02:02Z","modified":"2023-01-27T05:03:01Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:42:09.126228Z"}],"nvd":[{"id":"CVE-2021-31173","description":"Microsoft SharePoint Server Information Disclosure Vulnerability","status":"published","published":"2021-05-11T19:15:09.56Z","modified":"2026-06-17T03:51:22.867Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:06:53.343329Z"}]}}