{"id":"CVE-2025-53771","aliases":["EUVD-2025-22040","GHSA-6pmq-337c-gv96"],"status":"published","title":"Microsoft SharePoint Server Spoofing Vulnerability","description":"Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.9989,"percentile":0.99965,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20","CWE-287"],"published":"2025-07-20T22:16:52Z","modified":"2026-06-17T09:38:51Z","exploits":[{"source":"metasploit","id":"exploit/windows/http/sharepoint_toolpane_rce","title":"Microsoft SharePoint Server ToolPane Unauthenticated Remote Code Execution (aka ToolShell)","type":"exploit","platform":"Windows","date":"2025-07-08","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/http/sharepoint_toolpane_rce"},{"source":"nuclei","id":"CVE-2025-53771","title":"Microsoft SharePoint Server - Authentication Bypass (ToolShell)","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-53771.yaml"}],"products":[{"vendor":"microsoft","product":"microsoft sharepoint enterprise server 2016"},{"vendor":"microsoft","product":"microsoft sharepoint server 2019"},{"vendor":"microsoft","product":"microsoft sharepoint server subscription edition"},{"vendor":"microsoft","product":"sharepoint_server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53771","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/","tags":["Press/Media Coverage"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53771"},{"url":"https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available"},{"url":"https://github.com/advisories/GHSA-6pmq-337c-gv96"}],"sources":{"cve":[{"id":"CVE-2025-53771","title":"Microsoft SharePoint Server Spoofing Vulnerability","description":"Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2025-07-20T22:16:52.203Z","modified":"2026-02-13T19:07:03.835Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:32:49.180768Z"}],"euvd":[{"id":"EUVD-2025-22040","description":"Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2025-07-20T22:16:52Z","modified":"2026-02-13T19:07:03Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T19:48:39.538725Z"}],"ghsa":[{"id":"GHSA-6pmq-337c-gv96","title":"Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft...","description":"Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.","status":"published","published":"2025-07-21T00:33:35Z","modified":"2025-07-22T21:32:17Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-20","CWE-287"],"updated_at":"2026-11-02T15:03:05.693325Z"}],"nvd":[{"id":"CVE-2025-53771","description":"Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2025-07-20T23:15:31.807Z","modified":"2026-06-17T09:38:51.82Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:11:19.382856Z"}]}}