{"id":"CVE-2026-85900","title":"Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","summary":"Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"microsoft","product":"sharepoint_server","affected":["sharepoint_server < 16.0.20326.20190"],"patched":["sharepoint_server 16.0.20326.20190"],"published":"2026-10-13","updated":"2026-10-14","sourceUpdated":"2026-10-14T19:44:28.480","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85900","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85900","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.01519,"epssPercentile":0.74437,"ingestedAt":"2026-10-13T19:43:29.189Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-13T20:04:54.274486Z"},"slug":"CVE-2026-85900","body":"## Overview\n\nDeserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.\n\n## Affected\n\n- `sharepoint_server < 16.0.20326.20190`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `sharepoint_server 16.0.20326.20190`","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}