{"id":"CVE-2025-53774","title":"Microsoft 365 Copilot BizChat Information Disclosure Vulnerability","summary":"Microsoft 365 Copilot BizChat Information Disclosure Vulnerability","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-77"],"vendor":"Microsoft","product":"Microsoft 365 Copilot's Business Chat","affected":["365_copilot_s_business_chat -"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2025-08-13T15:04:02.942124Z"},"published":"2025-08-07","updated":"2026-11-03","sourceUpdated":"2026-11-03T22:03:05.896Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-53774","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53774","label":"Microsoft 365 Copilot BizChat Information Disclosure Vulnerability"}],"tags":["cve.org"],"epss":0.00629,"epssPercentile":0.50338,"ingestedAt":"2026-11-05T20:33:06.563Z","slug":"CVE-2025-53774","body":"## Overview\n\nMicrosoft 365 Copilot BizChat Information Disclosure Vulnerability\n\n## Affected\n\n- `365_copilot_s_business_chat -`\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":[]}