Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.

Applies to:

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

IMPORTANT

  • All updates for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2 require that the d3dcompiler_47.dll update is installed. We recommend that you install the included d3dcompiler_47.dll update before you apply this update. For more information about the d3dcompiler_47.dll, see KB 4019990.

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Summary

This security update addresses an issue where an unauthenticated attacker could cause a denial of service on an affected system. For more information please see CVE-2022-26832.

Known issues in this update

Microsoft is not currently aware of any issues in this update.

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 5012325 Description of the Security Only Update for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5012325)

How to obtain and install the update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 installed.

Install this update

Release Channel

Available

Next Step

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

Yes

This update will automatically sync with WSUS if you configure Products and Classifications as follows:

Product:Windows Server 2012

Classification: Security Updates

Restart requirement

You may need to restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

Update deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

20220412 Security update deployment information: April 12, 2022

Update removal information

Note We do not recommend that you remove any security update. To remove this update, use the Programs and Features item in Control Panel.

Update restart information

This update does not require a system restart after you apply it unless files that are being updated are locked or are being used.

Update replacement information

This update replaces previously released updates KB5009712 and KB4570501.

File Information

File hash information

File name

SHA256 hash

Windows8-RT-KB5012146-x64.msu

F253559F9057B07FB8A14A13D452FDAD98E962875926E7F0FE9027EE6590822A

Windows8-RT-KB5012146-x86.msu

1F0F9DE2A82FEFBA609E557A9A174CE71DEFD10401056F8729436076991273CD

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Aspnet_perf.dll

4.7.3930.0

40,336

23-Feb-2022

00:28

x64

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

22-Feb-2022

22:59

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

23-Feb-2022

00:29

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_wp.exe

4.7.3930.0

44,952

23-Feb-2022

00:28

x64

SPN

AMD64_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52519.0

690,008

29-Nov-2021

19:37

x64

None

Not applicable

Msvcr120_clr0400.dll

12.0.52519.0

993,632

29-Nov-2021

19:37

x64

None

Not applicable

System.web.applicationservices.dll

4.7.3930.0

64,832

23-Feb-2022

00:32

x86

None

Not applicable

System.web.extensions.dll

4.7.3930.0

1,842,968

23-Feb-2022

00:32

x86

None

Not applicable

Webengine4.dll

4.7.3930.0

661,392

23-Feb-2022

00:28

x64

None

Not applicable

Webengine.dll

4.7.3930.0

19,336

23-Feb-2022

00:28

x64

None

Not applicable

System.web.dll

4.7.3930.0

5,394,320

23-Feb-2022

00:28

x64

None

Not applicable

System.web.applicationservices.dll

4.7.3930.0

64,832

23-Feb-2022

00:32

x86

None

Not applicable

System.web.extensions.dll

4.7.3930.0

1,842,968

23-Feb-2022

00:32

x86

None

Not applicable

Aspnet_perf.dll

4.7.3930.0

35,720

23-Feb-2022

00:32

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

22-Feb-2022

22:52

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

23-Feb-2022

00:34

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.7.3930.0

39,312

23-Feb-2022

00:32

x86

SPN

X86_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52519.0

485,576

29-Nov-2021

19:37

x86

None

Not applicable

Msvcr120_clr0400.dll

12.0.52519.0

987,840

29-Nov-2021

19:37

x86

None

Not applicable

System.web.extensions.dll

4.7.3930.0

1,842,968

23-Feb-2022

00:32

x86

None

Not applicable

Webengine4.dll

4.7.3930.0

543,112

23-Feb-2022

00:32

x86

None

Not applicable

Webengine.dll

4.7.3930.0

18,864

23-Feb-2022

00:32

x86

None

Not applicable

System.web.dll

4.7.3930.0

5,411,760

23-Feb-2022

00:32

x86

None

Not applicable

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

System.web.applicationservices.dll

4.7.3930.0

64,832

23-Feb-2022

00:32

x86

None

Not applicable

System.web.extensions.dll

4.7.3930.0

1,842,968

23-Feb-2022

00:32

x86

None

Not applicable

Aspnet_perf.dll

4.7.3930.0

35,720

23-Feb-2022

00:32

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

22-Feb-2022

22:52

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

23-Feb-2022

00:34

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.7.3930.0

39,312

23-Feb-2022

00:32

x86

SPN

X86_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52519.0

485,576

29-Nov-2021

19:37

x86

None

Not applicable

Msvcr120_clr0400.dll

12.0.52519.0

987,840

29-Nov-2021

19:37

x86

None

Not applicable

System.web.extensions.dll

4.7.3930.0

1,842,968

23-Feb-2022

00:32

x86

None

Not applicable

Webengine4.dll

4.7.3930.0

543,112

23-Feb-2022

00:32

x86

None

Not applicable

Webengine.dll

4.7.3930.0

18,864

23-Feb-2022

00:32

x86

None

Not applicable

System.web.dll

4.7.3930.0

5,411,760

23-Feb-2022

00:32

x86

None

Not applicable

Information about protection and security

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!

×