{"id":"CVE-2026-63516","aliases":[],"title":"Microsoft SharePoint Server Spoofing Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","products":[{"vendor":"Microsoft","name":"Microsoft SharePoint Enterprise Server 2016","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","status":"affected","lessThan":"16.0.5565.1001","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-63516"},{"vendor":"Microsoft","name":"Microsoft SharePoint Server 2019","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","status":"affected","lessThan":"16.0.10417.20198","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-63516"},{"vendor":"Microsoft","name":"Microsoft SharePoint Server Subscription Edition","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","status":"affected","lessThan":"16.0.19725.20522","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-63516"}],"remediation":[],"description":"Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.","severity":"medium","score":6.5,"published":"2026-08-11T17:03:30.803Z","modified":"2026-10-26T23:09:47.098Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63516"],"sources":[{"name":"CVE","id":"CVE-2026-63516","modified":"2026-10-26T23:09:47.098Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-63516"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","score":6.5}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T19:10:31.056Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}