CVE-2020-16920

{"containers": {"cna": {"title": "Windows Application Compatibility Client Library Elevation of Privilege Vulnerability", "datePublic": "2020-10-13T07:00:00.000Z", "affected": [{"vendor": "Microsoft", "product": "Windows 10 Version 1803", "cpes": ["cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:arm64:*"], "platforms": ["32-bit Systems", "x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1809", "cpes": ["cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:*"], "platforms": ["32-bit Systems", "x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019", "cpes": ["cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1909", "cpes": ["cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*"], "platforms": ["32-bit Systems", "x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server, version 1909 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1709 for 32-bit Systems", "cpes": ["cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*"], "platforms": ["32-bit Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1709", "cpes": ["cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1903 for 32-bit Systems", "cpes": ["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"], "platforms": ["Unknown"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1903 for x64-based Systems", "cpes": ["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"], "platforms": ["Unknown"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1903 for ARM64-based Systems", "cpes": ["cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*"], "platforms": ["Unknown"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server, version 1903 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 2004", "cpes": ["cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*"], "platforms": ["32-bit Systems", "ARM64-based Systems", "x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server version 2004", "cpes": ["cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1507", "cpes": ["cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*"], "platforms": ["32-bit Systems", "x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1607", "cpes": ["cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*"], "platforms": ["32-bit Systems", "x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016", "cpes": ["cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 7", "cpes": ["cpe:2.3:o:microsoft:windows_7:*:sp1:*:*:*:*:x86:*"], "platforms": ["32-bit Systems"], "versions": [{"version": "6.1.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 7 Service Pack 1", "cpes": ["cpe:2.3:o:microsoft:windows_7:*:sp1:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.1.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 8.1", "cpes": ["cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:*"], "platforms": ["32-bit Systems", "x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "6.3.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2008 R2 Service Pack 1", "cpes": ["cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.1.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "<p>An elevation of privilege vulnerability exists when the Windows Application Compatibility Client Library improperly handles registry operations. An attacker who successfully exploited this vulnerability could gain elevated privileges.</p>\n<p>To exploit the vulnerability, an attacker would first need code execution on a victim system. An attacker could then run a specially crafted application.</p>\n<p>The security update addresses the vulnerability by ensuring the Windows Application Compatibility Client Library properly handles registry operations.</p>", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "Elevation of Privilege", "lang": "en-US", "type": "Impact"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2023-12-31T19:19:49.445Z"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16920"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"}}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:45:34.497Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16920"}]}]}, "cveMetadata": {"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "assignerShortName": "microsoft", "cveId": "CVE-2020-16920", "datePublished": "2020-10-16T22:17:49.000Z", "dateReserved": "2020-08-04T00:00:00.000Z", "dateUpdated": "2024-08-04T13:45:34.497Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

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An attacker who successfully exploited this vulnerability could gain elevated privileges.</p>\n<p>To exploit the vulnerability, an attacker would first need code execution on a victim system. An attacker could then run a specially crafted application.</p>\n<p>The security update addresses the vulnerability by ensuring the Windows Application Compatibility Client Library properly handles registry operations.</p>"}, {"lang": "es", "value": "Se presenta una vulnerabilidad de escalada de privilegios cuando la Windows Application Compatibility Client Library maneja inapropiadamente operaciones de registro, tambi\u00e9n se conoce como \"Windows Application Compatibility Client Library Elevation of Privilege Vulnerability\".&#xa0;Este ID de CVE es diferente de CVE-2020-16876"}], "id": "CVE-2020-16920", "lastModified": "2026-06-17T02:58:16.283", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "secure@microsoft.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Secondary"}]}, "published": "2020-10-16T23:15:14.790", "references": [{"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16920"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16920"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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