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Applies to:

Microsoft .NET Framework 4.5.2

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 4.5.2 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 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-KB5012153-x64.msu

26CC643808AE48A963660C90AA79EE05A909B61A094CC503F89B6FED636ACCFB

Windows8-RT-KB5012153-x86.msu

DE6E52822CD44C25111AA62A530B0038DF2A5AC5A2733E33DE8F118C45859126

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Aspnet_perf.h

Not applicable

7,177

23-Nov-2021

01:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_perf2.ini

Not applicable

995,542

23-Nov-2021

01:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_perf2_d.ini

Not applicable

31

23-Nov-2021

01:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_state_perf.h

Not applicable

318

23-Nov-2021

01:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_state_perf.ini

Not applicable

42,996

23-Nov-2021

01:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_state_perf_d.ini

Not applicable

36

23-Nov-2021

01:14

Not applicable

SPN

AMD64_NETFX-ASPNET-NONWOW

Aspnet_perf.dll

4.0.30319.36730

39,312

24-Feb-2022

06:13

x64

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

23-Nov-2021

01:14

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

23-Nov-2021

01:14

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_wp.exe

4.0.30319.36730

41,880

24-Feb-2022

06:13

x64

SPN

AMD64_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52730.36730

672,656

24-Feb-2022

06:13

x64

None

Not applicable

Msvcr120_clr0400.dll

12.0.52730.36730

863,632

24-Feb-2022

06:13

x64

None

Not applicable

System.web.applicationservices.dll

4.0.30319.36730

66,400

24-Feb-2022

06:13

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36730

1,854,816

24-Feb-2022

06:13

x86

None

Not applicable

Webengine4.dll

4.0.30319.36730

615,312

24-Feb-2022

06:13

x64

None

Not applicable

Webengine.dll

4.0.30319.36730

20,880

24-Feb-2022

06:13

x64

None

Not applicable

System.web.dll

4.0.30319.36730

5,452,688

24-Feb-2022

06:13

x64

None

Not applicable

System.web.applicationservices.dll

4.0.30319.36730

66,400

24-Feb-2022

06:12

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36730

1,854,816

24-Feb-2022

06:12

x86

None

Not applicable

Aspnet_perf.dll

4.0.30319.36730

35,760

24-Feb-2022

06:12

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.0.30319.36730

37,304

24-Feb-2022

06:12

x86

SPN

X86_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52730.36730

530,856

24-Feb-2022

06:12

x86

None

Not applicable

Msvcr120_clr0400.dll

12.0.52730.36730

869,800

24-Feb-2022

06:12

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36730

1,854,816

24-Feb-2022

06:12

x86

None

Not applicable

Webengine4.dll

4.0.30319.36730

502,664

24-Feb-2022

06:12

x86

None

Not applicable

Webengine.dll

4.0.30319.36730

18,856

24-Feb-2022

06:12

x86

None

Not applicable

System.web.dll

4.0.30319.36730

5,459,344

24-Feb-2022

06:12

x86

None

Not applicable

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

System.web.applicationservices.dll

4.0.30319.36730

66,400

24-Feb-2022

06:12

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36730

1,854,816

24-Feb-2022

06:12

x86

None

Not applicable

Aspnet_perf.h

Not applicable

7,177

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_perf2.ini

Not applicable

995,542

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_perf2_d.ini

Not applicable

31

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_state_perf.h

Not applicable

318

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_state_perf.ini

Not applicable

42,996

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_state_perf_d.ini

Not applicable

36

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX-ASPNET-NONWOW

Aspnet_perf.dll

4.0.30319.36730

35,760

24-Feb-2022

06:12

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

20-Feb-2022

01:36

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.0.30319.36730

37,304

24-Feb-2022

06:12

x86

SPN

X86_NETFX4-ASP

Msvcp120_clr0400.dll

12.0.52730.36730

530,856

24-Feb-2022

06:12

x86

None

Not applicable

Msvcr120_clr0400.dll

12.0.52730.36730

869,800

24-Feb-2022

06:12

x86

None

Not applicable

System.web.extensions.dll

4.0.30319.36730

1,854,816

24-Feb-2022

06:12

x86

None

Not applicable

Webengine4.dll

4.0.30319.36730

502,664

24-Feb-2022

06:12

x86

None

Not applicable

Webengine.dll

4.0.30319.36730

18,856

24-Feb-2022

06:12

x86

None

Not applicable

System.web.dll

4.0.30319.36730

5,459,344

24-Feb-2022

06:12

x86

None

Not applicable

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