{"id":"CVE-2026-54123","title":"Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability","summary":"Exposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-200"],"vendor":"Microsoft","product":"Microsoft Defender for Endpoint for Mac","affected":["defender_for_endpoint_for_mac >= 101.0.0 < 101.26042.0020"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-12T13:24:06.058537Z"},"published":"2026-08-11","updated":"2026-09-24","sourceUpdated":"2026-09-24T13:45:04.056Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54123","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54123","label":"Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability"}],"tags":["cve.org"],"epss":0.00438,"epssPercentile":0.37534,"ingestedAt":"2026-09-08T18:07:34.897Z","slug":"CVE-2026-54123","body":"## Overview\n\nExposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally.\n\n## Affected\n\n- `defender_for_endpoint_for_mac >= 101.0.0 < 101.26042.0020`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}