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cve[email protected]CVE-2021-38638
HistorySep 15, 2021 - 12:15 p.m.

CVE-2021-38638

2021-09-1512:15:14
CWE-269
web.nvd.nist.gov
75
cve-2021-38638
nvd
windows
ancillary function driver
winsock
elevation of privilege
vulnerability

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.5%

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Affected configurations

Vulners
NVD
Node
microsoftwindows_10_1809Range10.0.010.0.17763.2183
OR
microsoftwindows_server_2019Range10.0.010.0.17763.2183
OR
microsoftwindows_server_2019Range10.0.010.0.17763.2183
OR
microsoftwindows_10_1909Range10.0.010.0.18363.1801
OR
microsoftwindows_10_21h1Range10.0.010.0.19043.1237
OR
microsoftwindows_server_2022Range10.0.010.0.20348.230
OR
microsoftwindows_10_2004Range10.0.010.0.19041.1237
OR
microsoftwindows_server_version_2004Range10.0.010.0.19041.1237
OR
microsoftwindows_10_20h2Range10.0.010.0.19042.1237
OR
microsoftwindows_server_20h2Range10.0.010.0.19042.1237
OR
microsoftwindows_10_1507Range10.0.010.0.10240.19060
OR
microsoftwindows_10_1607Range10.0.010.0.14393.4651
OR
microsoftwindows_server_2016Range10.0.010.0.14393.4651
OR
microsoftwindows_server_2016Range10.0.010.0.14393.4651
OR
microsoftwindows_7Range6.1.06.1.7601.25712
OR
microsoftwindows_7_sp1Range6.1.06.1.7601.25712sp1
OR
microsoftwindows_8.1Range6.3.06.3.9600.20120
OR
microsoftwindows_server_2008_sp2Range6.0.06.0.6003.21218sp2
OR
microsoftwindows_server_2008_sp2Range6.0.06.0.6003.21218sp2
OR
microsoftwindows_server_2008_sp2Range6.0.06.0.6003.21218sp2
OR
microsoftwindows_server_2008_r2_sp1Range6.1.06.1.7601.25712sp1
OR
microsoftwindows_server_2008_r2_sp1Range6.0.06.1.7601.25712sp1
OR
microsoftwindows_server_2012Range6.2.06.2.9200.23462
OR
microsoftwindows_server_2012Range6.2.06.2.9200.23462
OR
microsoftwindows_server_2012_r2Range6.3.06.3.9600.20120
OR
microsoftwindows_server_2012_r2Range6.3.06.3.9600.20120
VendorProductVersionCPE
microsoftwindows_10_1809*cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
microsoftwindows_server_2019*cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoftwindows_server_2019*cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoftwindows_10_1909*cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
microsoftwindows_10_21h1*cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
microsoftwindows_server_2022*cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoftwindows_10_2004*cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
microsoftwindows_server_version_2004*cpe:2.3:o:microsoft:windows_server_version_2004:*:*:*:*:*:*:*:*
microsoftwindows_10_20h2*cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
microsoftwindows_server_20h2*cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
Rows per page:
1-10 of 261

CNA Affected

[
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 1809",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2183:*:*:*:*:*:x86:*",
      "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2183:*:*:*:*:*:x64:*",
      "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2183:*:*:*:*:*:arm64:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems",
      "ARM64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.17763.2183",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2019",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2183:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.17763.2183",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2019 (Server Core installation)",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2183:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.17763.2183",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 1909",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1801:*:*:*:*:*:x86:*",
      "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1801:*:*:*:*:*:x64:*",
      "cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1801:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems",
      "ARM64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.18363.1801",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 21H1",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1237:*:*:*:*:*:x64:*",
      "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1237:*:*:*:*:*:arm64:*",
      "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1237:*:*:*:*:*:x86:*"
    ],
    "platforms": [
      "x64-based Systems",
      "ARM64-based Systems",
      "32-bit Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19043.1237",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2022",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.230:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.20348.230",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 2004",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1237:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "32-bit Systems",
      "ARM64-based Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19041.1237",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server version 2004",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1237:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19041.1237",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 20H2",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1237:*:*:*:*:*:x86:*",
      "cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1237:*:*:*:*:*:arm64:*"
    ],
    "platforms": [
      "32-bit Systems",
      "ARM64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19042.1237",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server version 20H2",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1237:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.19042.1237",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 1507",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19060:*:*:*:*:*:x86:*",
      "cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19060:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.10240.19060",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 1607",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4651:*:*:*:*:*:x86:*",
      "cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4651:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.14393.4651",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2016",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4651:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.14393.4651",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2016 (Server Core installation)",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4651:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.0",
        "lessThan": "10.0.14393.4651",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 7",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_7:6.1.7601.25712:sp1:*:*:*:*:x86:*"
    ],
    "platforms": [
      "32-bit Systems"
    ],
    "versions": [
      {
        "version": "6.1.0",
        "lessThan": "6.1.7601.25712",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 7 Service Pack 1",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_7:6.1.7601.25712:sp1:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.1.0",
        "lessThan": "6.1.7601.25712",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 8.1",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20120:*:*:*:*:*:x86:*",
      "cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20120:*:*:*:*:*:x64:*",
      "cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20120:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems",
      "ARM64-based Systems"
    ],
    "versions": [
      {
        "version": "6.3.0",
        "lessThan": "6.3.9600.20120",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2008 Service Pack 2",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21218:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "32-bit Systems"
    ],
    "versions": [
      {
        "version": "6.0.0",
        "lessThan": "6.0.6003.21218",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2008 Service Pack 2 (Server Core installation)",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21218:*:*:*:*:*:x64:*",
      "cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21218:*:*:*:*:*:x86:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.0.0",
        "lessThan": "6.0.6003.21218",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2008  Service Pack 2",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21218:*:*:*:*:*:x86:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.0.0",
        "lessThan": "6.0.6003.21218",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2008 R2 Service Pack 1",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25712:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.1.0",
        "lessThan": "6.1.7601.25712",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25712:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.0.0",
        "lessThan": "6.1.7601.25712",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2012",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23462:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.2.0",
        "lessThan": "6.2.9200.23462",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2012 (Server Core installation)",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23462:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.2.0",
        "lessThan": "6.2.9200.23462",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2012 R2",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20120:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.3.0",
        "lessThan": "6.3.9600.20120",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2012 R2 (Server Core installation)",
    "cpes": [
      "cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20120:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "6.3.0",
        "lessThan": "6.3.9600.20120",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.5%