{"id":"CVE-2026-65815","title":"Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability","summary":"Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) 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/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-502"],"vendor":"Microsoft","product":"Microsoft Dynamics 365 (on-premises) version 9.1","affected":["dynamics_365_on-premises_version_9.1 >= 9.0 < 9.1.0047.0006"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-12T03:56:10.129277Z"},"published":"2026-08-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:24:31.800Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-65815","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65815","label":"Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability"}],"tags":["cve.org"],"epss":0.0093,"epssPercentile":0.59081,"ingestedAt":"2026-09-08T18:07:34.896Z","slug":"CVE-2026-65815","body":"## Overview\n\nDeserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.\n\n## Affected\n\n- `dynamics_365_on-premises_version_9.1 >= 9.0 < 9.1.0047.0006`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}