{"containers": {"cna": {"title": "Win32k Elevation of Privilege Vulnerability", "datePublic": "2021-10-12T07:00:00.000Z", "affected": [{"vendor": "Microsoft", "product": "Windows 10 Version 1809", "cpes": ["cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:arm64:*"], "platforms": ["32-bit Systems", "x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.17763.2237", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019", "cpes": ["cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.17763.2237", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.17763.2237", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 1909", "cpes": ["cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1854:*:*:*:*:*:x64:*"], "platforms": ["32-bit Systems", "x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.18363.1854", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 21H1", "cpes": ["cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1288:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1288:*:*:*:*:*:arm64:*", "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1288:*:*:*:*:*:x86:*"], "platforms": ["x64-based Systems", "ARM64-based Systems", "32-bit Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.19043.1288", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2022", "cpes": ["cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.288:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.20348.288", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 2004", "cpes": ["cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1288:*:*:*:*:*:x64:*"], "platforms": ["32-bit Systems", "ARM64-based Systems", "x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.19041.1288", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server version 2004", "cpes": ["cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1288:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.19041.1288", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 10 Version 20H2", "cpes": ["cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1288:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1288:*:*:*:*:*:arm64:*"], "platforms": ["32-bit Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.19042.1288", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server version 20H2", "cpes": ["cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1288:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.19042.1288", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows 11 version 21H2", "cpes": ["cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:arm64:*"], "platforms": ["x64-based Systems", "ARM64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "10.0.22000.258", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Win32k Elevation of Privilege Vulnerability", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "Elevation of Privilege", "lang": "en-US", "type": "Impact"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2024-05-29T14:52:21.901Z"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450"}], "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:U/RL:O/RC:C"}}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T02:44:10.378Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-40450", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-04T19:34:09.939626Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2022-04-25", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information"}]}], "timeline": [{"time": "2022-04-25T00:00:00.000Z", "lang": "en", "value": "CVE-2021-40450 added to CISA KEV"}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:25:28.974Z"}}]}, "cveMetadata": {"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "assignerShortName": "microsoft", "cveId": "CVE-2021-40450", "datePublished": "2021-10-13T00:26:49.000Z", "dateReserved": "2021-09-02T00:00:00.000Z", "dateUpdated": "2025-10-21T23:25:28.974Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T02:44:10.378Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-40450", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-04T19:34:09.939626Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2022-04-25", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450"}}}], "timeline": [{"lang": "en", "time": "2022-04-25T00:00:00.000Z", "value": "CVE-2021-40450 added to CISA KEV"}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-04T19:34:35.756Z"}}], "cna": {"title": "Win32k Elevation of Privilege Vulnerability", "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}, "scenarios": [{"lang": "en-US", "value": "GENERAL"}]}], "affected": [{"cpes": ["cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:arm64:*"], "vendor": "Microsoft", "product": "Windows 10 Version 1809", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.17763.2237", "versionType": "custom"}], "platforms": ["32-bit Systems", "x64-based Systems", "ARM64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*"], "vendor": "Microsoft", "product": "Windows Server 2019", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.17763.2237", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*"], "vendor": "Microsoft", "product": "Windows Server 2019 (Server Core installation)", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.17763.2237", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1854:*:*:*:*:*:x64:*"], "vendor": "Microsoft", "product": "Windows 10 Version 1909", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.18363.1854", "versionType": "custom"}], "platforms": ["32-bit Systems", "x64-based Systems", "ARM64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1288:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1288:*:*:*:*:*:arm64:*", "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1288:*:*:*:*:*:x86:*"], "vendor": "Microsoft", "product": "Windows 10 Version 21H1", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.19043.1288", "versionType": "custom"}], "platforms": ["x64-based Systems", "ARM64-based Systems", "32-bit Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.288:*:*:*:*:*:*:*"], "vendor": "Microsoft", "product": "Windows Server 2022", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.20348.288", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1288:*:*:*:*:*:x64:*"], "vendor": "Microsoft", "product": "Windows 10 Version 2004", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.19041.1288", "versionType": "custom"}], "platforms": ["32-bit Systems", "ARM64-based Systems", "x64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1288:*:*:*:*:*:*:*"], "vendor": "Microsoft", "product": "Windows Server version 2004", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.19041.1288", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1288:*:*:*:*:*:x86:*", "cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1288:*:*:*:*:*:arm64:*"], "vendor": "Microsoft", "product": "Windows 10 Version 20H2", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.19042.1288", "versionType": "custom"}], "platforms": ["32-bit Systems", "ARM64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1288:*:*:*:*:*:*:*"], "vendor": "Microsoft", "product": "Windows Server version 20H2", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.19042.1288", "versionType": "custom"}], "platforms": ["x64-based Systems"]}, {"cpes": ["cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:x64:*", "cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:arm64:*"], "vendor": "Microsoft", "product": "Windows 11 version 21H2", "versions": [{"status": "affected", "version": "10.0.0", "lessThan": "10.0.22000.258", "versionType": "custom"}], "platforms": ["x64-based Systems", "ARM64-based Systems"]}], "datePublic": "2021-10-12T07:00:00.000Z", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en-US", "value": "Win32k Elevation of Privilege Vulnerability"}], "problemTypes": [{"descriptions": [{"lang": "en-US", "type": "Impact", "description": "Elevation of Privilege"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2024-05-29T14:52:21.901Z"}}}, "cveMetadata": {"cveId": "CVE-2021-40450", "state": "PUBLISHED", "dateUpdated": "2025-10-21T23:25:28.974Z", "dateReserved": "2021-09-02T00:00:00.000Z", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "datePublished": "2021-10-13T00:26:49.000Z", "assignerShortName": "microsoft"}, "dataVersion": "5.1"}

{"cisaActionDue": "2022-05-16", "cisaExploitAdd": "2022-04-25", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Microsoft Win32k Privilege Escalation Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*", "matchCriteriaId": "D03564D3-788A-4BD7-B717-B3681515A5BE", "versionEndExcluding": "10.0.17763.2237", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*", "matchCriteriaId": "2DFF53D4-2910-4A58-81DF-6DDC01D2C523", "versionEndExcluding": "10.0.18363.1854", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*", "matchCriteriaId": "C995398E-B786-4AC7-B6D4-790ED8C68F8C", "versionEndExcluding": "10.0.19041.1288", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*", "matchCriteriaId": "129B19A3-40D5-48D4-B3CA-8934062E6933", "versionEndExcluding": "10.0.19042.1288", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*", "matchCriteriaId": "D78C68AE-C471-4234-B0D0-7E09D2E131AB", "versionEndExcluding": "10.0.19043.1288", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*", "matchCriteriaId": "2FF279C0-02C7-4D60-85E8-9FB89492D738", "versionEndExcluding": "10.0.22000.258", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*", "matchCriteriaId": "486E7F23-6A3B-46AA-9F31-91EDF933B36A", "versionEndExcluding": "10.0.19041.1288", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "matchCriteriaId": "A555704D-BB77-46A3-A0F9-62409FCC5F40", "versionEndExcluding": "10.0.17763.2237", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "matchCriteriaId": "6E5F3F99-530D-4065-9133-9C251F89B406", "versionEndExcluding": "10.0.20348.288", "vulnerable": true}, {"criteria": "cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*", "matchCriteriaId": "224FA1B7-84EF-435F-BBFA-33BD39C32595", "versionEndExcluding": "10.0.19042.1288", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Win32k Elevation of Privilege Vulnerability"}, {"lang": "es", "value": "Una vulnerabilidad de Elevaci\u00f3n de Privilegios en Win32k . Este ID de CVE es diferente de CVE-2021-40449, CVE-2021-41357"}], "id": "CVE-2021-40450", "lastModified": "2025-10-30T19:14:23.747", "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": "2021-10-13T01:15:09.750", "references": [{"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40450"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40450"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}