fkie_cve-2021-40449
Vulnerability from fkie_nvd
Published
2021-10-13 01:15
Modified
2025-10-22 00:17
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Win32k Elevation of Privilege Vulnerability
References
secure@microsoft.comhttp://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
secure@microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449Patch, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449
Impacted products
Vendor Product Version
microsoft windows_10_1507 *
microsoft windows_10_1607 *
microsoft windows_10_1809 *
microsoft windows_10_1909 *
microsoft windows_10_2004 *
microsoft windows_10_20h2 *
microsoft windows_10_21h1 *
microsoft windows_11 *
microsoft windows_11_21h2 *
microsoft windows_7 -
microsoft windows_8.1 -
microsoft windows_rt_8.1 -
microsoft windows_server_2004 *
microsoft windows_server_2008 -
microsoft windows_server_2008 r2
microsoft windows_server_2012 -
microsoft windows_server_2012 r2
microsoft windows_server_2016 *
microsoft windows_server_2019 *
microsoft windows_server_2022 *
microsoft windows_server_20h2 *


To clipboard 

{
  "cisaActionDue": "2021-12-01",
  "cisaExploitAdd": "2021-11-17",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Microsoft Windows Win32k Privilege Escalation Vulnerability",
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "1BA46972-5882-48F6-B686-AEAA16D5BC9E",
              "versionEndExcluding": "10.0.10240.19086",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C72A940A-A2DC-4FA3-BCF2-7CD46E3B2150",
              "versionEndExcluding": "10.0.14393.4704",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "D03564D3-788A-4BD7-B717-B3681515A5BE",
              "versionEndExcluding": "10.0.17763.2237",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "2DFF53D4-2910-4A58-81DF-6DDC01D2C523",
              "versionEndExcluding": "10.0.18363.1854",
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            },
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              "versionEndExcluding": "10.0.19041.1288",
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            },
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              "versionEndExcluding": "10.0.19041.1288",
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            },
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              "matchCriteriaId": "B3017B3C-995F-4C9E-99C6-36714A8370BC",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "2FF279C0-02C7-4D60-85E8-9FB89492D738",
              "versionEndExcluding": "10.0.22000.258",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "C2B1C231-DE19-4B8F-A4AA-5B3A65276E46",
              "vulnerable": true
            },
            {
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              "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
            },
            {
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              "versionEndExcluding": "10.0.19041.1288",
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            },
            {
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              "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C",
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            },
            {
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            },
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            },
            {
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              "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E",
              "vulnerable": true
            },
            {
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            },
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              "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-2021-40450, CVE-2021-41357"
    }
  ],
  "id": "CVE-2021-40449",
  "lastModified": "2025-10-22T00:17:44.870",
  "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": "2021-10-13T01:15:09.703",
  "references": [
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html"
    },
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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