{"id":"CVE-2026-63512","aliases":["EUVD-2026-56296","GHSA-cp5r-7qc8-wfqr"],"status":"published","title":"Microsoft SharePoint Server Tampering Vulnerability","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00725,"percentile":0.54414,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2026-08-11T17:03:30Z","modified":"2026-10-30T17:19:15Z","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-2026-63512","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63512"},{"url":"https://github.com/advisories/GHSA-cp5r-7qc8-wfqr"}],"sources":{"cve":[{"id":"CVE-2026-63512","title":"Microsoft SharePoint Server Tampering Vulnerability","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.","status":"published","published":"2026-08-11T17:03:30.242Z","modified":"2026-10-30T17:19:15.768Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:19:55.914391Z"}],"euvd":[{"id":"EUVD-2026-56296","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.","status":"published","published":"2026-08-11T17:03:30Z","modified":"2026-10-30T17:19:15Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:59:05.130363Z"}],"ghsa":[{"id":"GHSA-cp5r-7qc8-wfqr","title":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform...","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.","status":"published","published":"2026-08-11T18:31:30Z","modified":"2026-08-11T18:31:34Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:10:19.387522Z"}],"nvd":[{"id":"CVE-2026-63512","description":"Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.","status":"published","published":"2026-08-11T17:18:45.95Z","modified":"2026-08-12T15:18:06.88Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:36.499002Z"}]}}