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MicrosoftCVE-2021-33744

HistoryJul 14, 2021 - 6:15 p.m.

CVE-2021-33744

2021-07-1418:15:09

microsoft

web.nvd.nist.gov

cve-2021-33744

nvd

windows

vulnerability

security bypass

kernel mode

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

5.3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

AI Score

6.9

Confidence

High

EPSS

Percentile

9.5%

JSON

Windows Secure Kernel Mode Security Feature Bypass Vulnerability

Affected configurations

Nvd

Vulners

Node

microsoftwindows_10Match20h2x64

microsoftwindows_10Match21h1x64

microsoftwindows_10Match1809x64

microsoftwindows_10Match1909x64

microsoftwindows_10Match2004x64

microsoftwindows_server_2016Match20h2

microsoftwindows_server_2016Match2004

microsoftwindows_server_2019Match-

VendorProductVersionCPE
microsoftwindows_1020h2cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*
microsoftwindows_1021h1cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:*
microsoftwindows_101809cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*
microsoftwindows_101909cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*
microsoftwindows_102004cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*
microsoftwindows_server_201620h2cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*
microsoftwindows_server_20162004cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
microsoftwindows_server_2019-cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
microsoft	windows_10	20h2	cpe:2.3:o:microsoft:windows_10:20h2::::::x64:
microsoft	windows_10	21h1	cpe:2.3:o:microsoft:windows_10:21h1::::::x64:
microsoft	windows_10	1809	cpe:2.3:o:microsoft:windows_10:1809::::::x64:
microsoft	windows_10	1909	cpe:2.3:o:microsoft:windows_10:1909::::::x64:
microsoft	windows_10	2004	cpe:2.3:o:microsoft:windows_10:2004::::::x64:
microsoft	windows_server_2016	20h2	cpe:2.3:o:microsoft:windows_server_2016:20h2:::::::*
microsoft	windows_server_2016	2004	cpe:2.3:o:microsoft:windows_server_2016:2004:::::::*
microsoft	windows_server_2019	-	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

CNA Affected

[
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 1809",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2061:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.17763.2061",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2019",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2061:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.17763.2061",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2019 (Server Core installation)",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2061:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.17763.2061",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 1909",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1679:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.18363.1679",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 21H1",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1110:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19043.1110",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 2004",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1110:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19041.1110",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server version 2004",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1110:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19041.1110",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server version 20H2",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1110:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19042.1110",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]