Applies to:

Microsoft .NET Framework 4.8

Note: Revised on Jun 20, 2023 to add resolution to known issue.

The February 14, 2023 update for Windows Embedded 8 Standard and Windows Server 2012 includes cumulative reliability improvements in .NET Framework 4.8. We recommend that you apply this update as part of your regular maintenance routines. Verify that you have installed the required updates listed in the How to get this update section before installing this update.

Summary

CVE-2023-21808 - .NET Framework Remote Code Execution Vulnerability This security update addresses a vulnerability in the MSDIA SDK where an untrusted pointer dereference can cause memory corruption, leading to a crash or remove code execution. For more information please see CVE-2023-21808.

CVE-2023-21722 - .NET Framework Denial of Service Vulnerability This security update addresses a vulnerability where the Visual Studio WMI Setup Provider Installer can be used by a low level, local attacker to corrupt local files that SYSTEM can writ to, leading to a potential denial of service. For more information please see CVE-2023-21722.

Additional information about this update

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

  • 5022784 Description of the Security Only Update for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 8 Standard and Windows Server 2012 (KB5022784)

Known issues in this update

Symptom

After installing this update, WPF apps may have a change in behavior. For more information about this issue, see KB5022083

Workaround

To mitigate this issue, see KB5022083.

Resolution

This issue has been resolved in the June 13, 2023 Security and Quality Rollup and Cumulative Update.

If you used any workaround or mitigations for this issue, they are no longer needed, and we recommend you remove them. To remove workaround review the workaround or alternative workaround which was applied for instructions. The workaround should be removed prior to installing the June update.

How to obtain and install the update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 4.8 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 individual .NET Framework product update will be installed, as applicable, by applying the operating system update. For more information about operating system updates see additional information about this update section.

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:

20230214 Security update deployment information: February 14, 2023

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-RT-KB5022514-x64-NDP48.msu

4A5CA5F9D32B25FFC914AC7C1E233C1651D775523FF0886A33D898671EE061F2

Windows8-RT-KB5022514-x86-NDP48.msu

4D2EBC166530AE0F0F70DFB5E8D1DA8BE0307DFC6B2D8AC4C6DDFDB52BF6B5BE

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.8.4614.0

5,432,720

14-Dec-2022

07:11

x64

Normidna.nlp

Not applicable

59,342

08-Nov-2019

21:00

Not applicable

Normnfc.nlp

Not applicable

47,076

08-Nov-2019

21:00

Not applicable

Normnfd.nlp

Not applicable

40,566

08-Nov-2019

21:00

Not applicable

Normnfkc.nlp

Not applicable

67,808

08-Nov-2019

21:00

Not applicable

Normnfkd.nlp

Not applicable

61,718

08-Nov-2019

21:00

Not applicable

Clrjit.dll

4.8.4614.0

1,359,248

14-Dec-2022

07:11

x64

Clr.dll

4.8.4614.0

11,710,368

14-Dec-2022

07:11

x64

Compatjit.dll

4.8.4614.0

1,274,272

14-Dec-2022

07:11

x64

Diasymreader.dll

14.8.4614.0

1,486,736

14-Dec-2022

07:11

x64

Mscordacwks.dll

4.8.4614.0

1,803,664

14-Dec-2022

07:11

x64

Mscordbi.dll

4.8.4614.0

1,655,680

14-Dec-2022

07:11

x64

Peverify.dll

4.8.4614.0

266,640

14-Dec-2022

07:11

x64

Sos.dll

4.8.4614.0

923,008

14-Dec-2022

07:11

x64

Mscorlib.dll

4.8.4614.0

5,671,872

14-Dec-2022

07:20

x86

Normidna.nlp

Not applicable

59,342

08-Nov-2019

21:00

Not applicable

Normnfc.nlp

Not applicable

47,076

08-Nov-2019

21:00

Not applicable

Normnfd.nlp

Not applicable

40,566

08-Nov-2019

21:00

Not applicable

Normnfkc.nlp

Not applicable

67,808

08-Nov-2019

21:00

Not applicable

Normnfkd.nlp

Not applicable

61,718

08-Nov-2019

21:00

Not applicable

Clrjit.dll

4.8.4614.0

555,936

14-Dec-2022

07:13

x86

Clr.dll

4.8.4614.0

8,658,848

14-Dec-2022

07:13

x86

Diasymreader.dll

14.8.4614.0

1,074,080

14-Dec-2022

07:13

x86

Mscordacwks.dll

4.8.4614.0

1,308,544

14-Dec-2022

07:13

x86

Mscordbi.dll

4.8.4614.0

1,189,264

14-Dec-2022

07:13

x86

Peverify.dll

4.8.4614.0

183,696

14-Dec-2022

07:13

x86

Sos.dll

4.8.4614.0

768,912

14-Dec-2022

07:13

x86

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.8.4614.0

5,671,872

14-Dec-2022

07:20

x86

Normidna.nlp

Not applicable

59,342

08-Nov-2019

21:00

Not applicable

Normnfc.nlp

Not applicable

47,076

08-Nov-2019

21:00

Not applicable

Normnfd.nlp

Not applicable

40,566

08-Nov-2019

21:00

Not applicable

Normnfkc.nlp

Not applicable

67,808

08-Nov-2019

21:00

Not applicable

Normnfkd.nlp

Not applicable

61,718

08-Nov-2019

21:00

Not applicable

Clrjit.dll

4.8.4614.0

555,936

14-Dec-2022

07:13

x86

Clr.dll

4.8.4614.0

8,658,848

14-Dec-2022

07:13

x86

Diasymreader.dll

14.8.4614.0

1,074,080

14-Dec-2022

07:13

x86

Mscordacwks.dll

4.8.4614.0

1,308,544

14-Dec-2022

07:13

x86

Mscordbi.dll

4.8.4614.0

1,189,264

14-Dec-2022

07:13

x86

Peverify.dll

4.8.4614.0

183,696

14-Dec-2022

07:13

x86

Sos.dll

4.8.4614.0

768,912

14-Dec-2022

07:13

x86

Prerequisites

To apply this update, you must have .NET Framework 4.8 installed.

Restart requirement

You must 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.

How to obtain help and support for this update

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