Advisory Published
Updated

CVE-2021-1721: .NET Core and Visual Studio Denial of Service Vulnerability

First published: Thu Feb 25 2021(Updated: )

.NET Core and Visual Studio Denial of Service Vulnerability

Credit: secure@microsoft.com secure@microsoft.com

Affected SoftwareAffected VersionHow to fix
>=5.0<=5.0.2
>=2.1<=2.1.24
>=3.1<=3.1.11
=7.0
=7.1
>=15.0<=15.9
>=16.0<=16.8
Microsoft .NET>=5.0<=5.0.2
Microsoft .NET Core>=2.1<=2.1.24
Microsoft .NET Core>=3.1<=3.1.11
Microsoft Powershell Core=7.0
Microsoft Powershell Core=7.1
Microsoft Visual Studio 2017>=15.0<=15.9
Microsoft Visual Studio 2019>=16.0<=16.8

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Frequently Asked Questions

  • What is the vulnerability ID for this Denial of Service vulnerability?

    The vulnerability ID for this Denial of Service vulnerability is CVE-2021-1721.

  • What software is affected by this vulnerability?

    This vulnerability affects Microsoft .NET, Microsoft .NET Core, Microsoft PowerShell Core, Microsoft Visual Studio 2017, and Microsoft Visual Studio 2019.

  • What is the severity of CVE-2021-1721?

    The severity of CVE-2021-1721 is medium with a CVSS score of 6.5.

  • How can I fix the vulnerability CVE-2021-1721?

    To fix the vulnerability CVE-2021-1721, it is recommended to update to the latest version of the affected software.

  • Where can I find more information about CVE-2021-1721?

    You can find more information about CVE-2021-1721 at the following link: [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721)

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