CVE-2018-8435

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{"affected": [{"affectedData": [{"product": "Windows Server 2016", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "(Server Core installation)"}]}, {"product": "Windows 10", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "Version 1607 for x64-based Systems"}, {"status": "affected", "version": "Version 1703 for x64-based Systems"}, {"status": "affected", "version": "Version 1709 for x64-based Systems"}, {"status": "affected", "version": "Version 1803 for x64-based Systems"}, {"status": "affected", "version": "x64-based Systems"}]}, {"product": "Windows 10 Servers", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "version 1709 (Server Core Installation)"}, {"status": "affected", "version": "version 1803 (Server Core Installation)"}]}], "source": "secure@microsoft.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*", "matchCriteriaId": "084984D5-D241-497B-B118-50C6C1EAD468", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*", "matchCriteriaId": "897A48D7-FCA1-4560-AFBB-718AF19BA3A2", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:x64:*", "matchCriteriaId": "2704BDB7-C9DC-42A6-925D-798568E22D6D", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:x64:*", "matchCriteriaId": "1B3308A0-1699-4A4A-8D6B-AB4E4C825C95", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x64:*", "matchCriteriaId": "1981BA0D-0920-40C0-8A6A-5D5A1B221560", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*", "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*", "matchCriteriaId": "5B454BFE-D3AB-4CDC-B79B-F60EA3F57DBA", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*", "matchCriteriaId": "CAACE735-003E-4ACB-A82E-C0CF97D7F013", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A security feature bypass vulnerability exists when Windows Hyper-V BIOS loader fails to provide a high-entropy source, aka \"Windows Hyper-V Security Feature Bypass Vulnerability.\" This affects Windows Server 2016, Windows 10, Windows 10 Servers."}, {"lang": "es", "value": "Existe una vulnerabilidad de omisi\u00f3n de la caracter\u00edstica de seguridad cuando el cargador de BIOS de Windows Hyper-V no puede proporcionar una fuente con alta entrop\u00eda. Esto tambi\u00e9n se conoce como \"Windows Hyper-V Security Feature Bypass Vulnerability\". Esto afecta a Windows Server 2016, Windows 10 y Windows 10 Servers."}], "id": "CVE-2018-8435", "lastModified": "2026-06-17T02:04:52.017", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "ADJACENT_NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 2.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:A/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 4.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 4.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 0.5, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-09-13T00:29:03.757", "references": [{"source": "secure@microsoft.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/105240"}, {"source": "secure@microsoft.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1041624"}, {"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/105240"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1041624"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-331"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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