CVE-2022-21911: .NET Framework Denial of Service Vulnerability

Published Jan 11, 2022
·
Updated

.NET Framework Denial of Service Vulnerability.

Affected Software

243 affected componentsFixes available
Microsoft .NET Framework=4.5.2
Patch availablePatch available
Microsoft .NET Framework=2.0
Patch availablePatch available
Microsoft .NET Framework=4.6
Patch availablePatch available
Microsoft .NET Framework=4.5.2
Patch availablePatch available
Microsoft .NET Framework=4.8
Patch availablePatch available
Microsoft .NET Framework=3.5.1
Patch availablePatch available
Microsoft .NET Framework=4.6, =4.6.1, =4.6.2, =4.7, =4.7.1, =4.7.2
Patch availablePatch available
Microsoft .NET Framework=4.6, =4.6.1, =4.6.2, =4.7, =4.7.1, =4.7.2
Patch availablePatch available
Microsoft .NET Framework=4.5.2
Patch availablePatch available
Microsoft .NET Framework=3.5
Patch availablePatch available
Microsoft .NET Framework=4.8
Patch availablePatch available
Microsoft .NET Framework=4.6, =4.6.1, =4.6.2, =4.7, =4.7.1, =4.7.2
Patch availablePatch available
Microsoft .NET Framework=4.8
Patch availablePatch available
Microsoft .NET Framework=4.6, =4.6.1, =4.6.2, =4.7, =4.7.1, =4.7.2
Patch availablePatch available
Microsoft .NET Framework=3.5
Patch availablePatch available
Microsoft .NET Framework=4.5.2
Patch availablePatch available
Microsoft .NET Framework=4.6, =4.6.1, =4.6.2, =4.7, =4.7.1, =4.7.2
Patch available
Microsoft .NET Framework=4.8
Patch available
Microsoft .NET Framework=3.5, =4.7.2
Patch available
Microsoft .NET Framework=3.5, =4.6.2, =4.7, =4.7.1, =4.7.2
Patch available
Microsoft .NET Framework=4.5.2
Patch available
Microsoft .NET Framework=4.8
Patch available
Microsoft .NET Framework=3.5, =4.8
Patch 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
Patch available
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Microsoft Windows 10
All of the following
Any of the following
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 the following
Any of the following
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 the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Microsoft Windows 10=1909
All of the following
Microsoft .NET Framework=4.8
Microsoft Windows Server 2016
All of the following
Any of the following
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 the following
Any of the following
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 the following
Any of the following
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 the following
Any of the following
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 the following
Any of the following
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 the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Microsoft Windows 10=1809
All of the following
Microsoft .NET Framework=4.8
Microsoft Windows 7=sp1
All of the following
Microsoft .NET Framework=4.8
Microsoft Windows Server 2012
All of the following
Microsoft .NET Framework=4.8
Microsoft Windows Server 2008=r2-sp1
All of the following
Microsoft .NET Framework=4.8
Microsoft Windows 8.1
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Microsoft Windows 10=1909
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Microsoft Windows 10=1809
All of the following
Microsoft .NET Framework=4.8
Microsoft Windows 10=1607
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Microsoft Windows 10=20h2
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Microsoft Windows 10=1909
All of the following
Any of the following
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 the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Microsoft Windows Server 2019
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Microsoft Windows 10
All of the following
Any of the following
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 the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Microsoft Windows 10=1809
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Microsoft Windows 10=1809
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Microsoft Windows 10=1809
All of the following
Microsoft .NET Framework=4.5.2
Microsoft Windows Server 2012
All of the following
Microsoft .NET Framework=4.5.2
Microsoft Windows Server 2008
All of the following
Microsoft .NET Framework=4.5.2
Microsoft Windows Server 2008
All of the following
Microsoft .NET Framework=4.5.2
Microsoft Windows 8.1
All of the following
Microsoft .NET Framework=4.5.2
Microsoft Windows 8.1
All of the following
Microsoft .NET Framework=4.5.2
Microsoft Windows 7
All of the following
Microsoft .NET Framework=3.5.1
Microsoft Windows 7
All of the following
Microsoft .NET Framework=3.5
Any of the following
Microsoft Windows 8.1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
All of the following
Microsoft .NET Framework=4.6
Any of the following
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=sp2
All of the following
Microsoft .NET Framework=2.0-sp2
Any of the following
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=sp2
All of the following
Any of the following
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 the following
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 8.1
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
All of the following
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 8.1
Microsoft Windows Server 2012=r2
All of the following
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 8.1
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
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=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 the following
Microsoft .NET Framework=4.5.2
Any of the following
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
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=20h2
Microsoft Windows Server=20h2
Microsoft Windows Server 2008=r2-sp1
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

Remediation

Patch Available

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21911

Event History

Jan 11, 2022
CVE Published
via Microsoft·08:00 AM
Data Sourced
via Microsoft·08:00 AM
DescriptionSeverityWeakness
CVE Published
via MITRE·08:23 PM
Data Sourced
via MITRE·08:23 PM
DescriptionSeverity
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Frequently Asked Questions

1

What is CVE-2022-21911?

CVE-2022-21911 is a Denial of Service vulnerability in .NET Framework.

2

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.

3

What is the severity of CVE-2022-21911?

CVE-2022-21911 has a severity score of 7.5 (High).

4

How can I fix CVE-2022-21911?

Apply the security update provided by Microsoft to fix CVE-2022-21911.

5

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).

Company

Resources

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