CVE-2023-21722: .NET Framework Denial of Service Vulnerability
First published: Tue Feb 14 2023(Updated: )
.NET Framework Denial of Service Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 | |
| Microsoft .NET Framework | =3.5=4.7.2 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =3.5=4.8.1 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =3.5=4.7.2 | |
| Microsoft .NET Framework | =3.5=4.8.1 | |
| Microsoft .NET Framework | =3.5=4.8.1 | |
| Microsoft .NET Framework | =3.5.1 | |
| Microsoft .NET Framework and 4.6.2 | =3.5 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =3.5=4.8.1 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.6.2=4.7=4.7.1=4.7.2 | |
| Microsoft .NET Framework | =2.0 | |
| Microsoft .NET Framework | =4.6.2=4.7=4.7.1=4.7.2 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =3.5=4.8.1 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =4.6.2=4.7=4.7.1=4.7.2 | |
| Microsoft .NET Framework | =3.5=4.8.1 | |
| Microsoft .NET Framework | =3.0 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.7.2 | |
| Any of | ||
| 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 | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Any of | ||
| 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 | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8.1 | |
| Any of | ||
| 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 | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft Windows Server 2012 | ||
| All of | ||
| Microsoft .NET Framework | =3.5.1 | |
| Microsoft Windows Server 2008 | =r2-sp1 | |
| All of | ||
| Microsoft .NET Framework | =3.0-sp2 | |
| Microsoft Windows Server 2008 | =sp2 | |
| All of | ||
| Microsoft .NET Framework | =2.0-sp2 | |
| Microsoft Windows Server 2008 | =sp2 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.6.2 | |
| Any of | ||
| 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 | ||
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft Windows Server 2008 | =sp2 | |
| All of | ||
| Any of | ||
| 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 | ||
| Microsoft Windows Server 2008 | =r2-sp1 | |
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Any of | ||
| Microsoft Windows Server 2008 | =r2-sp1 | |
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-21722?
CVE-2023-21722 is a Denial of Service vulnerability in .NET Framework.
How severe is CVE-2023-21722?
CVE-2023-21722 has a severity rating of high (5).
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.
How do I fix CVE-2023-21722?
To fix CVE-2023-21722, you can apply the relevant security patches provided by Microsoft.
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.
- collector/msrc
- agent/author
- agent/type
- agent/first-publish-date
- agent/severity
- agent/title
- agent/references
- agent/remedy
- agent/description
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/mitre-cve
- source/MITRE
- collector/msrc-cve
- source/Microsoft
- agent/software-canonical-lookup
- agent/event
- collector/nvd-api
- source/NVD
- agent/weakness
- agent/last-modified-date
- agent/softwarecombine
- agent/tags
- vendor/microsoft
- canonical/microsoft .net framework
- version/microsoft .net framework/3.5
- version/microsoft .net framework/4.7.2
- canonical/microsoft windows 10 1607
- canonical/microsoft windows 10 1809
- canonical/microsoft windows server 2016
- canonical/microsoft windows server 2019
- version/microsoft .net framework/4.8
- canonical/microsoft windows 10 20h2
- canonical/microsoft windows 10 21h2
- canonical/microsoft windows 10 22h2
- canonical/microsoft windows 11 21h2
- canonical/microsoft windows server 2022
- version/microsoft .net framework/4.8.1
- canonical/microsoft windows 11 22h2
- canonical/microsoft windows server 2012
- version/microsoft .net framework/3.5.1
- canonical/microsoft windows server 2008
- version/microsoft windows server 2008/r2-sp1
- version/microsoft .net framework/3.0-sp2
- version/microsoft windows server 2008/sp2
- version/microsoft .net framework/2.0-sp2
- version/microsoft .net framework/4.6.2
- canonical/microsoft windows 10 1507
- canonical/microsoft windows 10 1511
- canonical/microsoft windows 10 1703
- canonical/microsoft windows 10 1709
- canonical/microsoft windows 10 1803
- canonical/microsoft windows 10 1903
- canonical/microsoft windows 10 1909
- canonical/microsoft windows 10 2004
- canonical/microsoft windows 10 21h1
- version/microsoft .net framework/4.7
- version/microsoft .net framework/4.7.1
- version/microsoft windows server 2012/r2
- canonical/microsoft .net framework and 4.6.2
- version/microsoft .net framework and 4.6.2/3.5
- version/microsoft .net framework/2.0
- version/microsoft .net framework/3.0