{"id":"CVE-2025-59245","published":"2025-11-20T22:18:36Z","modified":"2026-02-26T16:07:44Z","title":"Microsoft SharePoint Online Elevation of Privilege Vulnerability","vendor":"Microsoft","product":"Microsoft SharePoint Online","tier":"tail","description":{"text":"Microsoft SharePoint Online Elevation of Privilege Vulnerability","provenance":"source","from":"CVE.org"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.01132,"percentile":0.6633,"provenance":"source"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59245","tags":["vendor-advisory","patch"]}],"priority":{"score":20.1,"factors":[{"name":"EPSS percentile","points":13.27},{"name":"CVSS severity","points":6.86}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Microsoft SharePoint Online","versions":["-"]}],"euvd":{"id":"EUVD-2025-198371","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-sharepoint-cwe-502"}}