CVE-2026-54123

{"id": "CVE-2026-54123", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54123", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-12T13:24:06.058537Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "Microsoft Defender for Endpoint for Mac", "versions": [{"status": "affected", "version": "101.0.0", "lessThan": "101.26042.0020", "versionType": "custom"}]}]}], "published": "2026-08-11T17:18:03.647", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54123", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "Exposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally."}], "lastModified": "2026-08-17T12:06:36.043", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:macos:*:*", "vulnerable": true, "matchCriteriaId": "FFF70557-B0A4-4C97-8EC1-5D5A93096337", "versionEndExcluding": "101.26042.0020", "versionStartIncluding": "101.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}