{"id":"CVE-2026-42895","title":"Microsoft Copilot Tampering Vulnerability","summary":"Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-77"],"vendor":"Microsoft","product":"Microsoft 365 Copilot","affected":["365_copilot -"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-06-23T00:00:00+00:00"},"published":"2026-06-19","updated":"2026-09-24","sourceUpdated":"2026-09-24T13:43:32.213Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-42895","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42895","label":"Microsoft Copilot Tampering Vulnerability"}],"tags":["cve.org"],"epss":0.00707,"epssPercentile":0.5135,"ingestedAt":"2026-09-24T14:44:21.435Z","slug":"CVE-2026-42895","body":"## Overview\n\nImproper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.\n\n## Affected\n\n- `365_copilot -`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}