{"api_version":"1","generated_at":"2026-07-23T10:59:12+00:00","cve":"CVE-2020-1040","urls":{"html":"https://cve.report/CVE-2020-1040","api":"https://cve.report/api/cve/CVE-2020-1040.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-1040","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-1040"},"summary":{"title":"CVE-2020-1040","description":"A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1032, CVE-2020-1036, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043.","state":"PUBLIC","assigner":"secure@microsoft.com","published_at":"2020-07-14 23:15:00","updated_at":"2020-07-21 16:18:00"},"problem_types":["CWE-20"],"metrics":[],"references":[{"url":"https://nvidia.custhelp.com/app/answers/detail/a_id/5044","name":"https://nvidia.custhelp.com/app/answers/detail/a_id/5044","refsource":"CONFIRM","tags":["Third Party Advisory"],"title":"Security Notice: NVIDIA Response to Cisco Talos Report - July 2020 | NVIDIA","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1040","name":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1040","refsource":"MISC","tags":["Patch","Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-1040","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1040","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"1040","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2008","cpe6":"r2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2020","cve_id":"1040","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2008","cpe6":"r2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"},{"cve_year":"2020","cve_id":"1040","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2012","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1040","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2012","cpe6":"r2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1040","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2012","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1040","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"microsoft","cpe5":"windows_server_2012","cpe6":"r2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"1040","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":"2020","cve_id":"1040","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":"*"}],"vendor_comments":[],"enrichments":{"kev":{"cve_year":"2020","cve_id":"1040","cve":"CVE-2020-1040","vendorProject":"Microsoft","product":"Hyper-V RemoteFX","vulnerabilityName":"Microsoft Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability","dateAdded":"2021-11-03","shortDescription":"Microsoft Hyper-V RemoteFX vGPU contains an improper input validation vulnerability due to the host server failing to properly validate input from an authenticated user on a guest operating system. Successful exploitation allows for remote code execution on the host operating system.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-1040","cwes":"CWE-20","catalogVersion":"2026.07.22","updated_at":"2026-07-22 20:07:16"},"epss":{"cve_year":"2020","cve_id":"1040","cve":"CVE-2020-1040","epss":"0.069030000","percentile":"0.933930000","score_date":"2026-07-22","updated_at":"2026-07-23 00:09:34"},"legacy_qids":[]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ASSIGNER":"secure@microsoft.com","ID":"CVE-2020-1040","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Windows Server","version":{"version_data":[{"version_value":"2016"},{"version_value":"2016  (Core installation)"},{"version_value":"2008 R2 for x64-based Systems Service Pack 1"},{"version_value":"2008 R2 for x64-based Systems Service Pack 1 (Core installation)"},{"version_value":"2012"},{"version_value":"2012 (Core installation)"},{"version_value":"2012 R2"},{"version_value":"2012 R2 (Core installation)"}]}}]},"vendor_name":"Microsoft"}]}},"description":{"description_data":[{"lang":"eng","value":"A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1032, CVE-2020-1036, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Remote Code Execution"}]}]},"references":{"reference_data":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1040","refsource":"MISC","name":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1040"},{"refsource":"CONFIRM","name":"https://nvidia.custhelp.com/app/answers/detail/a_id/5044","url":"https://nvidia.custhelp.com/app/answers/detail/a_id/5044"}]}},"nvd":{"publishedDate":"2020-07-14 23:15:00","lastModifiedDate":"2020-07-21 16:18:00","problem_types":["CWE-20"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9,"baseSeverity":"CRITICAL"},"exploitabilityScore":2.3,"impactScore":6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:A/AC:L/Au:S/C:C/I:C/A:C","accessVector":"ADJACENT_NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE","baseScore":7.7},"severity":"HIGH","exploitabilityScore":5.1,"impactScore":10,"acInsufInfo":false,"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_server_2012:r2:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"1040","Ordinal":"159690","Title":"CVE-2020-1040","CVE":"CVE-2020-1040","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"1040","Ordinal":"1","NoteData":"A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1032, CVE-2020-1036, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"1040","Ordinal":"2","NoteData":"2020-07-14","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"1040","Ordinal":"3","NoteData":"2020-07-16","Type":"Other","Title":"Modified"}]}}}