{ "id": "CVE-2021-40449", "sourceIdentifier": "secure@microsoft.com", "published": "2021-10-13T01:15:09.703", "lastModified": "2025-03-13T16:36:21.307", "vulnStatus": "Analyzed", "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-2021-40450, CVE-2021-41357" } ], "metrics": { "cvssMetricV31": [ { "source": "secure@microsoft.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 }, { "source": "nvd@nist.gov", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "baseScore": 4.6, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 3.9, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "cisaExploitAdd": "2021-11-17", "cisaActionDue": "2021-12-01", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Microsoft Windows Win32k Privilege Escalation Vulnerability", "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-416" } ] }, { "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-416" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.10240.19086", "matchCriteriaId": "1BA46972-5882-48F6-B686-AEAA16D5BC9E" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.14393.4704", "matchCriteriaId": "C72A940A-A2DC-4FA3-BCF2-7CD46E3B2150" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.17763.2237", "matchCriteriaId": "D03564D3-788A-4BD7-B717-B3681515A5BE" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.18363.1854", "matchCriteriaId": "2DFF53D4-2910-4A58-81DF-6DDC01D2C523" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19041.1288", "matchCriteriaId": "C995398E-B786-4AC7-B6D4-790ED8C68F8C" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19041.1288", "matchCriteriaId": "E2B1C8C4-E5E9-4B3E-8F01-618067D20EB0" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19041.1288", "matchCriteriaId": "B358BCA6-EF44-4378-B94B-F4BDD62FAF8C" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11:*:*:*:*:*:*:*:*", "matchCriteriaId": "B3017B3C-995F-4C9E-99C6-36714A8370BC" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.22000.258", "matchCriteriaId": "2FF279C0-02C7-4D60-85E8-9FB89492D738" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*", "matchCriteriaId": "C2B1C231-DE19-4B8F-A4AA-5B3A65276E46" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*", "matchCriteriaId": "E93068DB-549B-45AB-8E5C-00EB5D8B5CF8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*", "matchCriteriaId": "C6CE5198-C498-4672-AF4C-77AB4BE06C5C" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19041.1288", "matchCriteriaId": "486E7F23-6A3B-46AA-9F31-91EDF933B36A" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*", "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*", "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.14393.4704", "matchCriteriaId": "423A4CEB-CEE8-437C-BCC5-72310FC14E0E" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.17763.2237", "matchCriteriaId": "A555704D-BB77-46A3-A0F9-62409FCC5F40" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.20348.288", "matchCriteriaId": "6E5F3F99-530D-4065-9133-9C251F89B406" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19042.1288", "matchCriteriaId": "224FA1B7-84EF-435F-BBFA-33BD39C32595" } ] } ] } ], "references": [ { "url": "http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html", "source": "secure@microsoft.com", "tags": [ "Exploit", "Third Party Advisory", "VDB Entry" ] }, { "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449", "source": "secure@microsoft.com", "tags": [ "Patch", "Vendor Advisory" ] }, { "url": "http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Third Party Advisory", "VDB Entry" ] }, { "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Vendor Advisory" ] } ] }