{"api_version":"1","generated_at":"2026-07-03T15:12:06+00:00","cve":"CVE-2018-8435","urls":{"html":"https://cve.report/CVE-2018-8435","api":"https://cve.report/api/cve/CVE-2018-8435.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-8435","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8435"},"summary":{"title":"CVE-2018-8435","description":"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.","state":"PUBLIC","assigner":"secure@microsoft.com","published_at":"2018-09-13 00:29:00","updated_at":"2019-10-03 00:03:00"},"problem_types":["CWE-331"],"metrics":[],"references":[{"url":"http://www.securityfocus.com/bid/105240","name":"105240","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"Microsoft Windows Hyper-V CVE-2018-8435 Security Bypass Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"http://www.securitytracker.com/id/1041624","name":"1041624","refsource":"SECTRACK","tags":["Third Party Advisory","VDB Entry"],"title":"Microsoft Hyper-V Multiple Bugs Let Local Guest System Users Deny Service, Obtain Potentially Sensitive Information, and Cause the Host System to Crash - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435","name":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435","refsource":"CONFIRM","tags":["Patch","Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-8435","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8435","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"1607","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"1703","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"1709","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"1803","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"1607","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"1703","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"1709","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_10","cpe6":"1803","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"1709","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"1803","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"1709","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"8435","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2016","cpe6":"1803","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"secure@microsoft.com","ID":"CVE-2018-8435","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Windows Server 2016","version":{"version_data":[{"version_value":"(Server Core installation)"}]}},{"product_name":"Windows 10","version":{"version_data":[{"version_value":"Version 1607 for x64-based Systems"},{"version_value":"Version 1703 for x64-based Systems"},{"version_value":"Version 1709 for x64-based 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 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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Security Feature Bypass"}]}]},"references":{"reference_data":[{"name":"105240","refsource":"BID","url":"http://www.securityfocus.com/bid/105240"},{"name":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435","refsource":"CONFIRM","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435"},{"name":"1041624","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1041624"}]}},"nvd":{"publishedDate":"2018-09-13 00:29:00","lastModifiedDate":"2019-10-03 00:03:00","problem_types":["CWE-331"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":4.2,"baseSeverity":"MEDIUM"},"exploitabilityScore":0.5,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:A/AC:M/Au:S/C:N/I:P/A:N","accessVector":"ADJACENT_NETWORK","accessComplexity":"MEDIUM","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":2.3},"severity":"LOW","exploitabilityScore":4.4,"impactScore":2.9,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:x64:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:x64:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x64:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"8435","Ordinal":"124790","Title":"CVE-2018-8435","CVE":"CVE-2018-8435","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"8435","Ordinal":"1","NoteData":"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.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"8435","Ordinal":"2","NoteData":"2018-09-12","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"8435","Ordinal":"3","NoteData":"2018-09-13","Type":"Other","Title":"Modified"}]}}}