{"id":"CVE-2026-32201","aliases":["EUVD-2026-22587","GHSA-jmj9-qm9w-hrqj"],"status":"published","title":"Microsoft SharePoint Server Spoofing Vulnerability","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.43378,"percentile":0.98741,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-20"],"published":"2026-04-14T16:58:36Z","modified":"2026-10-26T22:10:00Z","kev":{"date_added":"2026-04-14","due_date":"2026-04-28","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2026-04-14"},{"source":"kev","since":"2026-04-14"}],"exploits":[{"source":"pocgithub","id":"B1tBit/CVE-2026-32201-exploit","title":"B1tBit/CVE-2026-32201-exploit","date":"2026-04-22","url":"https://github.com/B1tBit/CVE-2026-32201-exploit"}],"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"},{"vendor":"microsoft","product":"sharepoint_server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32201","tags":["government-resource","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32201"},{"url":"https://github.com/advisories/GHSA-jmj9-qm9w-hrqj"}],"sources":{"cve":[{"id":"CVE-2026-32201","title":"Microsoft SharePoint Server Spoofing Vulnerability","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2026-04-14T16:58:36.981Z","modified":"2026-10-15T15:53:37.451Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:19:57.100857Z"}],"euvd":[{"id":"EUVD-2026-22587","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2026-04-14T16:58:36Z","modified":"2026-10-15T15:53:37Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C","level":"medium"}],"exploited_since":"2026-04-14","updated_at":"2026-11-02T17:00:12.42385Z"}],"ghsa":[{"id":"GHSA-jmj9-qm9w-hrqj","title":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to...","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2026-04-14T18:30:41Z","modified":"2026-04-14T18:30:55Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:07:30.088478Z"}],"kev":[{"id":"CVE-2026-32201","title":"Microsoft SharePoint Server Improper Input Validation Vulnerability","description":"Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.","cwes":["CWE-20"],"kev":{"date_added":"2026-04-14","due_date":"2026-04-28","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2026-32201","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.","status":"published","published":"2026-04-14T18:17:27.16Z","modified":"2026-10-26T22:10:00.163Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:12:14.748836Z"}]}}