fkie_cve-2021-31979
Vulnerability from fkie_nvd
Published
2021-07-14 18:15
Modified
2025-10-29 16:47
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
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Windows Kernel Elevation of Privilege Vulnerability
References
secure@microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31979Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31979Patch, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31979US Government Resource
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_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_20h2 *


To clipboard 

{
  "cisaActionDue": "2021-11-17",
  "cisaExploitAdd": "2021-11-03",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Microsoft Windows Kernel Privilege Escalation Vulnerability",
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0C51CD3A-E78B-4A0D-8716-4F2C0A79ED68",
              "versionEndExcluding": "10.0.10240.19003",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9EEBF8AC-AB6E-4F62-811A-0E53721C78F5",
              "versionEndExcluding": "10.0.14393.4530",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5BAABE12-C0E8-4E34-9EFE-18DD50C54B1D",
              "versionEndExcluding": "10.0.17763.2061",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1C9E359B-5719-48B1-BABB-618744C73388",
              "versionEndExcluding": "10.0.18363.1679",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "307C13CF-563B-46D1-9F2E-227AB9C40720",
              "versionEndExcluding": "10.0.19041.1110",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9AEC53C7-C1CB-4FFB-8069-27604FB50F0B",
              "versionEndExcluding": "10.0.19042.1110",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "765BA052-1B41-4CD3-98E6-F3750E0466E5",
              "versionEndExcluding": "10.0.19043.1110",
              "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:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A73D95E0-7290-4049-ACA6-7071B6ECAB8D",
              "versionEndExcluding": "10.0.19041.1110",
              "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:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9127CF36-6B37-4698-BB02-2AC6D853EB6F",
              "versionEndExcluding": "10.0.14393.4530",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "77FA5A89-9F88-48FB-B632-76433EDBA95F",
              "versionEndExcluding": "10.0.17763.2061",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C210CB34-3DA4-4273-BF7C-F2692173E180",
              "versionEndExcluding": "10.0.19042.1110",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Windows Kernel Elevation of Privilege Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Elevaci\u00f3n de Privilegios en Windows Kernel. Este ID de CVE es diferente de CVE-2021-33771, CVE-2021-34514"
    }
  ],
  "id": "CVE-2021-31979",
  "lastModified": "2025-10-29T16:47:50.873",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "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"
      },
      {
        "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2021-07-14T18:15:09.597",
  "references": [
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31979"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31979"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ],
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31979"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.