Applies to:

Microsoft .NET Framework 4.5.2

IMPORTANT

  • As a reminder to advanced IT administrators, updates to .NET Framework 3.5 for Windows 8.1 and Windows Server 2012 R2 should only be applied on systems where .NET Framework 3.5 is present and enabled. Customers who attempt to pre-install updates to .NET Framework 3.5 to offline images that do not contain the .NET Framework 3.5 product enabled will expose these systems to failures to enable .NET Framework 3.5 after the systems are online. For more extensive information about deploying .NET Framework 3.5, see Microsoft .NET Framework 3.5 Deployment Considerations.

  • All updates for Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 require that update KB 2919355 is installed. We recommend that you install update KB 2919355 on your Windows 8.1-based, Windows RT 8.1-based, or Windows Server 2012 R2-based computer so that you receive updates in the future.

  • 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-2022-21911.

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.

  • 5009713 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 8.1 and Windows Server 2012 R2 (KB5009713)

How to obtain and install the update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 4.5.2 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 8.1 and Windows Server 2012 R2

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:

20220111 Security update deployment information: January 11, 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.

File Information

File hash information

File name

SHA256 hash

Windows8.1-KB5008893-arm.msu

B536F562191DA60BB156F177332A86506FD992D648FE998C2B56CDCD49F28FBB

Windows8.1-KB5008893-x64.msu

1D27A675C8B7AC96131EF34AFB7C61748B637D37ABE3BA75C2838EAF3ED5E082

Windows8.1-KB5008893-x86.msu

812E48310608CDCD0FC5F2719942F3B3D7D4D639CD27B066B0B6CB7CD90EF115

File name

File version

File size

Date

Time

Platform

Msvcp120_clr0400.dll

12.0.52720.36720

601,872

07-Dec-2021

19:01

Not applicable

Msvcr120_clr0400.dll

12.0.52720.36720

634,160

07-Dec-2021

19:01

Not applicable

System.web.extensions.dll

4.0.30319.36720

1,852,720

07-Dec-2021

19:01

x86

System.web.dll

4.0.30319.36720

5,465,904

07-Dec-2021

19:01

Not applicable

System.web.applicationservices.dll

4.0.30319.36720

64,304

07-Dec-2021

19:01

x86

System.web.extensions.dll

4.0.30319.36720

1,852,720

07-Dec-2021

19:01

x86

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Aspnet_perf.h

Not applicable

7,177

06-Mar-2021

06:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_perf2.ini

Not applicable

995,542

06-Mar-2021

06:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_perf2_d.ini

Not applicable

31

06-Mar-2021

06:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_state_perf.h

Not applicable

318

06-Mar-2021

06:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_state_perf.ini

Not applicable

42,996

06-Mar-2021

06:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_state_perf_d.ini

Not applicable

36

06-Mar-2021

06:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_perf.dll

4.0.30319.36720

38,280

07-Dec-2021

18:56

x64

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

06-Mar-2021

06:14

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

06-Mar-2021

06:14

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_wp.exe

4.0.30319.36720

40,832

07-Dec-2021

18:56

x64

SPN

AMD64_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52720.36720

671,632

07-Dec-2021

18:56

x64

None

Not applicable

Msvcr120_clr0400.dll

12.0.52720.36720

862,608

07-Dec-2021

18:56

x64

None

Not applicable

System.web.applicationservices.dll

4.0.30319.36720

64,304

07-Dec-2021

18:56

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36720

1,852,720

07-Dec-2021

18:56

x86

None

Not applicable

Webengine4.dll

4.0.30319.36720

614,288

07-Dec-2021

18:56

x64

None

Not applicable

Webengine.dll

4.0.30319.36720

19,856

07-Dec-2021

18:56

x64

None

Not applicable

System.web.dll

4.0.30319.36720

5,451,640

07-Dec-2021

18:56

x64

None

Not applicable

System.web.applicationservices.dll

4.0.30319.36720

64,304

07-Dec-2021

18:58

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36720

1,852,720

07-Dec-2021

18:58

x86

None

Not applicable

Aspnet_perf.dll

4.0.30319.36720

34,704

07-Dec-2021

18:58

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.0.30319.36720

36,248

07-Dec-2021

18:58

x86

SPN

X86_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52720.36720

529,808

07-Dec-2021

18:58

x86

None

Not applicable

Msvcr120_clr0400.dll

12.0.52720.36720

868,752

07-Dec-2021

18:58

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36720

1,852,720

07-Dec-2021

18:58

x86

None

Not applicable

Webengine4.dll

4.0.30319.36720

502,672

07-Dec-2021

18:58

x86

None

Not applicable

Webengine.dll

4.0.30319.36720

17,784

07-Dec-2021

18:58

x86

None

Not applicable

System.web.dll

4.0.30319.36720

5,457,808

07-Dec-2021

18:58

x86

None

Not applicable

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

System.web.applicationservices.dll

4.0.30319.36720

64,304

07-Dec-2021

18:58

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36720

1,852,720

07-Dec-2021

18:58

x86

None

Not applicable

Aspnet_perf.h

Not applicable

7,177

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_perf2.ini

Not applicable

995,542

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_perf2_d.ini

Not applicable

31

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_state_perf.h

Not applicable

318

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_state_perf.ini

Not applicable

42,996

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_state_perf_d.ini

Not applicable

36

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_perf.dll

4.0.30319.36720

34,704

07-Dec-2021

18:58

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

23-Mar-2021

01:11

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.0.30319.36720

36,248

07-Dec-2021

18:58

x86

SPN

X86_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52720.36720

529,808

07-Dec-2021

18:58

x86

None

Not applicable

Msvcr120_clr0400.dll

12.0.52720.36720

868,752

07-Dec-2021

18:58

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36720

1,852,720

07-Dec-2021

18:58

x86

None

Not applicable

Webengine4.dll

4.0.30319.36720

502,672

07-Dec-2021

18:58

x86

None

Not applicable

Webengine.dll

4.0.30319.36720

17,784

07-Dec-2021

18:58

x86

None

Not applicable

System.web.dll

4.0.30319.36720

5,457,808

07-Dec-2021

18:58

x86

None

Not applicable

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