CVE-2021-26423 .NET Core and Visual Studio Denial of Service Vulnerability

2021-08-1218:11:31

microsoft

www.cve.org

cve-2021-26423

.net core

visual studio

denial of service

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.002

Percentile

57.1%

JSON

CNA Affected

[
  {
    "vendor": "Microsoft",
    "product": "Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)",
    "cpes": [
      "cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "15.9.0",
        "lessThan": "15.9.38",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)",
    "cpes": [
      "cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "16.0",
        "lessThan": "16.4.25",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)",
    "cpes": [
      "cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "16.0.0",
        "lessThan": "16.7.18",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)",
    "cpes": [
      "cpe:2.3:a:microsoft:visual_studio_2019:16.9:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "15.0.0",
        "lessThan": "16.9.10",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9)",
    "cpes": [
      "cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "16.10.0",
        "lessThan": "16.10.5",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Visual Studio 2019 for Mac version 8.10",
    "cpes": [
      "cpe:2.3:a:microsoft:visual_studio_2019:8.10:*:*:*:*:macos:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "8.1.0",
        "lessThan": "8.10.7",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": ".NET Core 2.1",
    "cpes": [
      "cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "2.1",
        "lessThan": "2.1.30",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": ".NET Core 3.1",
    "cpes": [
      "cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "3.1",
        "lessThan": "3.1.18",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": ".NET 5.0",
    "cpes": [
      "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "5.0.0",
        "lessThan": "5.0.9",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "PowerShell Core 7.1",
    "cpes": [
      "cpe:2.3:a:microsoft:powershell_core:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "7.1.0",
        "lessThan": "7.1.4",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "PowerShell Core 7.0",
    "cpes": [
      "cpe:2.3:a:microsoft:powershell_core:*:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "7.0.0",
        "lessThan": "7.0.7",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]