CVE-2022-21911: .NET Framework Denial of Service Vulnerability
First published: Tue Jan 11 2022(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 | ||
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft Windows Server 2016 | ||
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft Windows Server 2012 | ||
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows Server 2008 | =r2-sp1 | |
| Microsoft Windows Server 2012 | =r2 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft Windows Server 2008 | ||
| Microsoft Windows Server 2008 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows 7 | ||
| Microsoft .NET Framework | =3.5.1 | |
| Microsoft Windows Server 2008 | =sp2 | |
| Microsoft Windows Server 2008 | =sp2 | |
| Microsoft .NET Framework | =2.0-sp2 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 11 | ||
| Microsoft Windows Server | =2022 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows Server | =20h2 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 10 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows Server 2016 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows Server 2012 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 10 | =1909 | |
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows Server 2016 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 7 | =sp1 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows Server 2008 | =r2-sp1 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows Server 2012 | =r2 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 8.1 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 8.1 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 10 | =1809 | |
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 7 | =sp1 | |
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows Server 2012 | ||
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows Server 2008 | =r2-sp1 | |
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 8.1 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 10 | =1909 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 10 | =1809 | |
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 10 | =1607 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 10 | =20h2 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft Windows 10 | =1909 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 10 | =1607 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows Server 2019 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 10 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 10 | =1607 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 10 | =1809 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 10 | =1809 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows 10 | =1809 | |
| All of | ||
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft Windows Server 2012 | ||
| All of | ||
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft Windows Server 2008 | ||
| All of | ||
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft Windows Server 2008 | ||
| All of | ||
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft Windows 8.1 | ||
| All of | ||
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft Windows 8.1 | ||
| All of | ||
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft Windows 7 | ||
| All of | ||
| Microsoft .NET Framework | =3.5.1 | |
| Microsoft Windows 7 | ||
| All of | ||
| Microsoft .NET Framework | =3.5 | |
| Any of | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| All of | ||
| Microsoft .NET Framework | =4.6 | |
| Any of | ||
| Microsoft Windows Server 2008 | =sp2 | |
| Microsoft Windows Server 2008 | =sp2 | |
| All of | ||
| Microsoft .NET Framework | =2.0-sp2 | |
| Any of | ||
| Microsoft Windows Server 2008 | =sp2 | |
| Microsoft Windows Server 2008 | =sp2 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| Microsoft .NET Framework | =4.7.1 | |
| Microsoft .NET Framework | =4.7.2 | |
| Microsoft Windows Server 2016 | ||
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Any of | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows Server 2012 | =r2 | |
| Microsoft Windows Server 2016 | ||
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Any of | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows Server 2012 | =r2 | |
| All of | ||
| Microsoft .NET Framework | =4.8 | |
| Any of | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows Server 2008 | =r2-sp1 | |
| Microsoft Windows Server 2012 | ||
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Any of | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 10 | =21h2 | |
| Microsoft Windows 11 | ||
| Microsoft Windows Server | =2022 | |
| All of | ||
| Microsoft .NET Framework | =4.5.2 | |
| Any of | ||
| Microsoft Windows Server 2008 | =r2-sp1 | |
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| All of | ||
| Any of | ||
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.8 | |
| Any of | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows Server | =20h2 | |
| Microsoft Windows Server 2008 | =r2-sp1 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =3.5=4.7.2 | |
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft .NET Framework | =3.5=4.6.2=4.7=4.7.1=4.7.2 | |
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =4.6=4.6.1=4.6.2=4.7=4.7.1=4.7.2 | |
| Microsoft .NET Framework | =4.6=4.6.1=4.6.2=4.7=4.7.1=4.7.2 | |
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =4.6=4.6.1=4.6.2=4.7=4.7.1=4.7.2 | |
| Microsoft .NET Framework | =3.5=4.7.2 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =4.6=4.6.1=4.6.2=4.7=4.7.1=4.7.2 | |
| Microsoft .NET Framework | =2.0 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft .NET Framework | =3.5=4.8 | |
| Microsoft .NET Framework | =3.5.1 | |
| Microsoft .NET Framework | =4.8 | |
| Microsoft .NET Framework | =4.6=4.6.1=4.6.2=4.7=4.7.1=4.7.2 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-21911?
CVE-2022-21911 is a Denial of Service vulnerability in .NET Framework.
Which software versions are affected by CVE-2022-21911?
Versions 3.5, 4.7.2, 4.6.2, 4.7, 4.7.1, and 4.8 of Microsoft .NET Framework are affected by CVE-2022-21911.
What is the severity of CVE-2022-21911?
CVE-2022-21911 has a severity score of 7.5 (High).
How can I fix CVE-2022-21911?
Apply the security update provided by Microsoft to fix CVE-2022-21911.
Where can I find more information about CVE-2022-21911?
You can find more information about CVE-2022-21911 in the advisory published by Microsoft: [link](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21911).
- agent/author
- agent/type
- agent/description
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/title
- agent/remedy
- collector/mitre-cve
- source/MITRE
- collector/msrc-cve
- source/Microsoft
- agent/references
- agent/severity
- agent/last-modified-date
- agent/first-publish-date
- agent/software-canonical-lookup
- agent/softwarecombine
- agent/tags
- agent/event
- collector/nvd-api
- source/NVD
- vendor/microsoft
- canonical/microsoft .net framework
- version/microsoft .net framework/3.5
- version/microsoft .net framework/4.7.2
- canonical/microsoft windows 10
- version/microsoft .net framework/4.6.2
- version/microsoft .net framework/4.7
- version/microsoft .net framework/4.7.1
- canonical/microsoft windows server 2016
- version/microsoft .net framework/4.6
- version/microsoft .net framework/4.6.1
- canonical/microsoft windows server 2012
- version/microsoft .net framework/4.8
- version/microsoft windows 10/1909
- canonical/microsoft windows 7
- version/microsoft windows 7/sp1
- canonical/microsoft windows server 2008
- version/microsoft windows server 2008/r2-sp1
- version/microsoft windows server 2012/r2
- canonical/microsoft windows 8.1
- version/microsoft windows 10/1809
- version/microsoft windows 10/1607
- version/microsoft windows 10/20h2
- canonical/microsoft windows server 2019
- version/microsoft .net framework/4.5.2
- version/microsoft .net framework/3.5.1
- version/microsoft windows server 2008/sp2
- version/microsoft .net framework/2.0-sp2
- version/microsoft windows 10/21h1
- version/microsoft windows 10/21h2
- canonical/microsoft windows 11
- canonical/microsoft windows server
- version/microsoft windows server/2022
- version/microsoft windows server/20h2
- version/microsoft .net framework/2.0