CVE-2023-21722: .NET Framework Denial of Service Vulnerability

Published Feb 14, 2023
·
Updated

.NET Framework Denial of Service Vulnerability

Affected Software

145 affected componentsFixes available
Microsoft .NET Framework and 4.6.2=3.5
Patch available
Microsoft .NET Framework=2.0
Patch availablePatch available
Microsoft .NET Framework=4.6.2
Patch availablePatch available
Microsoft .NET Framework=3.0
Patch availablePatch available
Microsoft .NET Framework=4.6.2, =4.7, =4.7.1, =4.7.2
Patch availablePatch available
Microsoft .NET Framework=3.5.1
Patch availablePatch available
Microsoft .NET Framework=4.8
Patch availablePatch available
Microsoft .NET Framework=4.8
Patch availablePatch available
Microsoft .NET Framework=3.5
Patch availablePatch available
Microsoft .NET Framework=4.6.2, =4.7, =4.7.1, =4.7.2
Patch availablePatch available
Microsoft .NET Framework=3.5, =4.7.2
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch available
Microsoft .NET Framework=4.8
Patch availablePatch available
Microsoft .NET Framework=3.5
Patch availablePatch available
Microsoft .NET Framework=4.6.2, =4.7, =4.7.1, =4.7.2
Patch availablePatch available
Microsoft .NET Framework=3.5, =4.7.2
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch available
Microsoft .NET Framework=3.5, =4.8.1
Patch available
Microsoft .NET Framework=3.5, =4.8.1
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch available
Microsoft .NET Framework=3.5, =4.8.1
Patch available
Microsoft .NET Framework=3.5, =4.8.1
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch available
Microsoft .NET Framework=3.5, =4.8.1
Patch available
Microsoft .NET Framework=3.5, =4.8.1
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch available
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows 10 1607
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows Server 2016
Microsoft Windows Server 2019
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 20h2
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 11 21h2
Microsoft Windows 11 21h2
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft Windows Server 2022
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8.1
Any of the following
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 11 21h2
Microsoft Windows 11 21h2
Microsoft Windows 11 22h2
Microsoft Windows 11 22h2
Microsoft Windows Server 2022
All of the following
Microsoft .NET Framework=3.5
Microsoft Windows Server 2012
All of the following
Microsoft .NET Framework=3.5.1
Microsoft Windows Server 2008=r2-sp1
All of the following
Microsoft .NET Framework=3.0-sp2
Microsoft Windows Server 2008=sp2
All of the following
Microsoft .NET Framework=2.0-sp2
Microsoft Windows Server 2008=sp2
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.6.2
Any of the following
Microsoft Windows 10 1507
Microsoft Windows 10 1511
Microsoft Windows 10 1607
Microsoft Windows 10 1703
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows 10 1909
Microsoft Windows 10 2004
Microsoft Windows 10 20h2
Microsoft Windows 10 21h1
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
All of the following
Microsoft .NET Framework=4.6.2
Microsoft Windows Server 2008=sp2
All of the following
Any of the following
Microsoft .NET Framework=4.6.2
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
All of the following
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Microsoft Windows 10 1607
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft .NET Framework=4.8
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 20h2
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 11 21h2
Microsoft Windows 11 21h2
Microsoft Windows Server 2022
Microsoft .NET Framework=4.8.1
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 11 22h2
Microsoft Windows 11 22h2
Microsoft Windows Server 2012
Microsoft .NET Framework=3.5.1
Microsoft Windows Server 2008=r2-sp1
Microsoft .NET Framework=3.0-sp2
Microsoft Windows Server 2008=sp2
Microsoft .NET Framework=2.0-sp2
Microsoft .NET Framework=4.6.2
Microsoft Windows 10 1507
Microsoft Windows 10 1511
Microsoft Windows 10 1703
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows 10 1909
Microsoft Windows 10 2004
Microsoft Windows 10 21h1
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft Windows Server 2012=r2

Remediation

Patch Available

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21722

Event History

Feb 14, 2023
CVE Published
08:00 AM
Data Sourced
08:00 AM
DescriptionSeverityWeakness
CVE Published
via MITRE·07:33 PM
Data Sourced
via MITRE·07:33 PM
DescriptionSeverity
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Frequently Asked Questions

1

What is CVE-2023-21722?

CVE-2023-21722 is a Denial of Service vulnerability in .NET Framework.

2

How severe is CVE-2023-21722?

CVE-2023-21722 has a severity rating of high (5).

3

Which versions of .NET Framework are affected by CVE-2023-21722?

CVE-2023-21722 affects .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, and 4.8.1.

4

How do I fix CVE-2023-21722?

To fix CVE-2023-21722, you can apply the relevant security patches provided by Microsoft.

5

Where can I find more information about CVE-2023-21722?

You can find more information about CVE-2023-21722 on the Microsoft Security Response Center website.

Company

Resources

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