CVE-2021-40449

{"id": "CVE-2021-40449", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2021-10-13T01:15:09.703", "references": [{"url": "http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "secure@microsoft.com"}, {"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449", "tags": ["Patch", "Vendor Advisory"], "source": "secure@microsoft.com"}, {"url": "http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449", "tags": ["US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-416"}]}], "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-2021-40450, CVE-2021-41357"}], "lastModified": "2025-10-30T19:14:28.930", "cisaActionDue": "2021-12-01", "cisaExploitAdd": "2021-11-17", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1BA46972-5882-48F6-B686-AEAA16D5BC9E", "versionEndExcluding": "10.0.10240.19086"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C72A940A-A2DC-4FA3-BCF2-7CD46E3B2150", "versionEndExcluding": "10.0.14393.4704"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D03564D3-788A-4BD7-B717-B3681515A5BE", "versionEndExcluding": "10.0.17763.2237"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2DFF53D4-2910-4A58-81DF-6DDC01D2C523", "versionEndExcluding": "10.0.18363.1854"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C995398E-B786-4AC7-B6D4-790ED8C68F8C", "versionEndExcluding": "10.0.19041.1288"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E2B1C8C4-E5E9-4B3E-8F01-618067D20EB0", "versionEndExcluding": "10.0.19041.1288"}, {"criteria": "cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B358BCA6-EF44-4378-B94B-F4BDD62FAF8C", "versionEndExcluding": "10.0.19041.1288"}, {"criteria": "cpe:2.3:o:microsoft:windows_11:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B3017B3C-995F-4C9E-99C6-36714A8370BC"}, {"criteria": "cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2FF279C0-02C7-4D60-85E8-9FB89492D738", "versionEndExcluding": "10.0.22000.258"}, {"criteria": "cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C2B1C231-DE19-4B8F-A4AA-5B3A65276E46"}, {"criteria": "cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E93068DB-549B-45AB-8E5C-00EB5D8B5CF8"}, {"criteria": "cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C6CE5198-C498-4672-AF4C-77AB4BE06C5C"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "486E7F23-6A3B-46AA-9F31-91EDF933B36A", "versionEndExcluding": "10.0.19041.1288"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "423A4CEB-CEE8-437C-BCC5-72310FC14E0E", "versionEndExcluding": "10.0.14393.4704"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A555704D-BB77-46A3-A0F9-62409FCC5F40", "versionEndExcluding": "10.0.17763.2237"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6E5F3F99-530D-4065-9133-9C251F89B406", "versionEndExcluding": "10.0.20348.288"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "224FA1B7-84EF-435F-BBFA-33BD39C32595", "versionEndExcluding": "10.0.19042.1288"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Microsoft Windows Win32k Privilege Escalation Vulnerability"}