CVE-2018-8438

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This CVE ID is unique from CVE-2018-8436, CVE-2018-8437."}], "problemTypes": [{"descriptions": [{"description": "Denial of Service", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-09-13T09:57:01.000Z", "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft"}, "references": [{"name": "105249", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/105249"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8438"}, {"name": "1041624", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1041624"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secure@microsoft.com", "ID": "CVE-2018-8438", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Windows Server 2012 R2", "version": {"version_data": [{"version_value": "(Server Core installation)"}]}}, {"product_name": "Windows RT 8.1", "version": {"version_data": [{"version_value": "Windows RT 8.1"}]}}, {"product_name": "Windows Server 2016", "version": {"version_data": [{"version_value": "(Server Core installation)"}]}}, {"product_name": "Windows 8.1", "version": {"version_data": [{"version_value": "32-bit systems"}, {"version_value": "x64-based systems"}]}}, {"product_name": "Windows 10", "version": {"version_data": [{"version_value": "32-bit Systems"}, {"version_value": "Version 1607 for 32-bit Systems"}, {"version_value": "Version 1607 for x64-based Systems"}, {"version_value": "Version 1703 for 32-bit Systems"}, {"version_value": "Version 1703 for x64-based Systems"}, {"version_value": "Version 1709 for 32-bit Systems"}, {"version_value": "Version 1709 for x64-based Systems"}, {"version_value": "Version 1803 for 32-bit Systems"}, {"version_value": "Version 1803 for x64-based Systems"}, {"version_value": "x64-based Systems"}]}}, {"product_name": "Windows 10 Servers", "version": {"version_data": [{"version_value": "version 1709 (Server Core Installation)"}, {"version_value": "version 1803 (Server Core Installation)"}]}}]}, "vendor_name": "Microsoft"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system, aka \"Windows Hyper-V Denial of Service Vulnerability.\" This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. 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{"affected": [{"affectedData": [{"product": "Windows Server 2012 R2", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "(Server Core installation)"}]}, {"product": "Windows RT 8.1", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "Windows RT 8.1"}]}, {"product": "Windows Server 2016", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "(Server Core installation)"}]}, {"product": "Windows 8.1", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "32-bit systems"}, {"status": "affected", "version": "x64-based systems"}]}, {"product": "Windows 10", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "32-bit Systems"}, {"status": "affected", "version": "Version 1607 for 32-bit Systems"}, {"status": "affected", "version": "Version 1607 for x64-based Systems"}, {"status": "affected", "version": "Version 1703 for 32-bit Systems"}, {"status": "affected", "version": "Version 1703 for x64-based Systems"}, {"status": "affected", "version": "Version 1709 for 32-bit Systems"}, {"status": "affected", "version": "Version 1709 for x64-based Systems"}, {"status": "affected", "version": "Version 1803 for 32-bit 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:-:*:*:*:*:*:*:*", "matchCriteriaId": "21540673-614A-4D40-8BD7-3F07723803B0", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*", "matchCriteriaId": "E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*", "matchCriteriaId": "83B14968-3985-43C3-ACE5-8307196EFAE3", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*", "matchCriteriaId": "7CB85C75-4D35-480E-843D-60579EC75FCB", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*", "matchCriteriaId": "E93068DB-549B-45AB-8E5C-00EB5D8B5CF8", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:rt:*:*:*", "matchCriteriaId": "D01999BB-2CD6-4C84-A518-3A3BB78F1105", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server:2012:r2:*:*:*:*:*:*", "matchCriteriaId": "BB6EEA00-8A92-40EB-85A9-CD47A0F5E07F", "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 denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system, aka \"Windows Hyper-V Denial of Service Vulnerability.\" This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8436, CVE-2018-8437."}, {"lang": "es", "value": "Existe una vulnerabilidad de denegaci\u00f3n de servicio cuando Microsoft Hyper-V Network Switch, en un servidor host valida incorrectamente entradas de un usuario privilegiado en un sistema operativo invitado. Esto tambi\u00e9n se conoce como \"Windows Hyper-V Denial of Service Vulnerability\". Esto afecta a Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10 y Windows 10 Servers. El ID de este CVE es diferente de CVE-2018-8436 y CVE-2018-8437."}], "id": "CVE-2018-8438", "lastModified": "2026-06-17T02:04:52.367", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 6.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 2.3, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-09-13T00:29:04.100", "references": [{"source": "secure@microsoft.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/105249"}, {"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-2018-8438"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/105249"}, {"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-2018-8438"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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