{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-112809", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2026-10-19T18:16:14.867Z", "datePublished": "2026-11-10T18:18:21.667Z", "dateUpdated": "2026-11-10T20:29:57.829Z"}, "containers": {"cna": {"title": "Windows Composite Image File System Information Disclosure Vulnerability", "datePublic": "2026-11-10T16:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:arm64:*", "versionStartIncluding": "10.0.28000.0", "versionEndExcluding": "10.0.28000.3501"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Windows 11 version 26H1", "platforms": ["ARM64-based Systems", "x64-based Systems"], "versions": [{"version": "10.0.28000.0", "lessThan": "10.0.28000.3501", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Improper access control in Windows Composite Image File System allows an authorized attacker to disclose information locally.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "Information Disclosure", "lang": "en-US", "type": "Impact"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-11-10T19:38:30.515Z"}, "references": [{"name": "Windows Composite Image File System Information Disclosure Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112809"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 5.5, "vectorString": "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"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-112809", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-10T20:21:05.582137Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-10T20:29:57.829Z"}}]}}

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{"affected": [{"affectedData": [{"platforms": ["ARM64-based Systems", "x64-based Systems"], "product": "Windows 11 version 26H1", "vendor": "Microsoft", "versions": [{"lessThan": "10.0.28000.3501", "status": "affected", "version": "10.0.28000.0", "versionType": "custom"}]}], "source": "secure@microsoft.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper access control in Windows Composite Image File System allows an authorized attacker to disclose information locally."}], "id": "CVE-2026-112809", "lastModified": "2026-11-10T21:18:36.857", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "secure@microsoft.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-112809", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-10T20:21:05.582137Z", "version": "2.0.3"}}]}, "published": "2026-11-10T19:18:45.440", "references": [{"source": "secure@microsoft.com", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112809"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Awaiting Analysis"}

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