cve-2021-31955
Vulnerability from cvelistv5
Published
2021-06-08 22:46
Modified
2024-08-03 23:10
Summary
Windows Kernel Information Disclosure Vulnerability
Impacted products
Vendor Product Version
Microsoft Windows Server 2019 Version: 10.0.0   < 10.0.17763.1999
    cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.1999:*:*:*:*:*:*:*
Microsoft Windows Server 2019 (Server Core installation) Version: 10.0.0   < 10.0.17763.1999
    cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.1999:*:*:*:*:*:*:*
Microsoft Windows 10 Version 1909 Version: 10.0.0   < 10.0.18363.1621
    cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1621:*:*:*:*:*:x64:*
Microsoft Windows 10 Version 21H1 Version: 10.0.0   < 10.0.19043.1052
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:arm64:*
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:x86:*
Microsoft Windows 10 Version 2004 Version: 10.0.0   < 10.0.19041.1052
    cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1052:*:*:*:*:*:x64:*
Microsoft Windows Server version 2004 Version: 10.0.0   < 10.0.19041.1052
    cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1052:*:*:*:*:*:*:*
Microsoft Windows 10 Version 20H2 Version: 10.0.0   < 10.0.19042.1052
    cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1052:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1052:*:*:*:*:*:arm64:*
Microsoft Windows Server version 20H2 Version: 10.0.0   < 10.0.19042.1052
    cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1052:*:*:*:*:*:*:*
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog

Date added: 2021-11-03

Due date: 2021-11-17

Required action: Apply updates per vendor instructions.

Used in ransomware: Unknown

Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-31955

Show details on NVD website


{
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                "id": "CVE-2021-31955",
                "options": [
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                  },
                  {
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                "role": "CISA Coordinator",
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                "version": "2.0.3"
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            "time": "2021-11-03T00:00:00+00:00",
            "value": "CVE-2021-31955 added to KEV"
          },
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            "time": "2021-11-03T00:00:00+00:00",
            "value": "CVE-2021-31955 added to CISA KEV"
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        "title": "CISA ADP Vulnrichment"
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          "cpes": [
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          "platforms": [
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          "product": "Windows Server version 2004",
          "vendor": "Microsoft",
          "versions": [
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              "status": "affected",
              "version": "10.0.0",
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      "datePublic": "2021-06-08T07:00:00+00:00",
      "descriptions": [
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          "value": "Windows Kernel Information Disclosure Vulnerability"
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      ],
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      "providerMetadata": {
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        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
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          "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31955"
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      "title": "Windows Kernel Information Disclosure Vulnerability"
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  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2021-31955",
    "datePublished": "2021-06-08T22:46:25",
    "dateReserved": "2021-04-30T00:00:00",
    "dateUpdated": "2024-08-03T23:10:31.263Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2021-31955",
      "cwes": "[\"CWE-497\"]",
      "dateAdded": "2021-11-03",
      "dueDate": "2021-11-17",
      "knownRansomwareCampaignUse": "Unknown",
      "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-31955",
      "product": "Windows",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "Microsoft Windows Kernel contains an unspecified vulnerability that allows for information disclosure. Successful exploitation allows attackers to read the contents of kernel memory from a user-mode process.",
      "vendorProject": "Microsoft",
      "vulnerabilityName": "Microsoft Windows Kernel Information Disclosure Vulnerability"
    },
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  }
}


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