{"affected":[{"platforms":["x64-based Systems"],"product":"Microsoft SharePoint Server Subscription Edition","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"16.0.20326.20136","status":"affected","version":"16.0.0","versionType":"custom"}]}],"cveId":"CVE-2026-123391","cwes":["CWE-863"],"description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.8,"severity":"high","source":"CNA: microsoft","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","version":"3.1"}],"modifiedAt":1794339759767,"publishedAt":1794334944125,"references":[{"source":"CNA: microsoft","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-123391"}],"remediation":[{"kind":"fix","source":"CNA: microsoft","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-123391"}],"revision":"345bf9bfc5a42c26ef8eb4345efac5624418a8eb06c7ef2898ef3369b46e747a","sources":[{"modifiedAt":1794339759767,"name":"CNA: microsoft","retrievedAt":1794340396854,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123391"}],"ssvc":null,"status":"published","title":"Microsoft Office SharePoint Elevation of Privilege Vulnerability","updatedAt":1794340396854}