{"id":"CVE-2026-65660","title":"Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","summary":"Improper control of generation of code ('code injection') 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-94"],"vendor":"microsoft","product":"sharepoint_server","affected":["sharepoint_server < 16.0.19725.20522","sharepoint_server = 2016","sharepoint_server = 2019"],"patched":["sharepoint_server 16.0.19725.20522"],"published":"2026-08-11","updated":"2026-09-26","sourceUpdated":"2026-09-26T04:17:45.630","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65660","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65660","label":"secure@microsoft.com"},{"url":"https://blog.previdian.com/cve-2026-65660-previdian-observes-two-stage-sharepoint-exploitation-attempts/","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65660","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","in-the-wild","exploit-available","kev"],"exploited":true,"exploitAvailable":true,"ssvc":{"exploitation":"active","automatable":"no","technicalImpact":"total","timestamp":"2026-09-25T15:40:09.216765Z"},"epss":0.08189,"epssPercentile":0.94841,"kev":true,"kevDateAdded":"2026-09-25","kevDueDate":"2026-09-28","kevRansomware":false,"exploits":{"github":2,"githubRepos":["https://github.com/ShadowForge-Cyber/CVE-2026-65660-Poc","https://github.com/HORKimhab/CVE-2026-65660"],"checkedAt":"2026-10-27T19:07:40.385Z"},"ingestedAt":"2026-09-08T18:07:34.897Z","slug":"CVE-2026-65660","body":"## Overview\n\nImproper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.\n\n## Affected\n\n- `sharepoint_server < 16.0.19725.20522`\n- `sharepoint_server = 2016`\n- `sharepoint_server = 2019`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `sharepoint_server 16.0.19725.20522`","depth":"abyssal","depthScore":75,"depthScoreParts":{"impact":48.4,"likelihood":1.6,"exploitation":25,"ransomware":0},"changes":[{"seq":230221,"id":"CVE-2026-65660","ts":1793128067974,"field":"epss","old":"0.02101","new":"0.08189"},{"seq":211271,"id":"CVE-2026-65660","ts":1790396811879,"field":"kev","old":"false","new":"true"},{"seq":211037,"id":"CVE-2026-65660","ts":1790352782127,"field":"exploit_available","old":"false","new":"true"},{"seq":211036,"id":"CVE-2026-65660","ts":1790352782127,"field":"exploited","old":"false","new":"true"}]}