Applies to:
Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2
REMINDER Windows Embedded 7 Standard and Windows Server 2008 R2 SP1 have reached the end of mainstream support and are now in extended security update (ESU) support.
Starting in July 2020, there will no longer be optional, non-security releases (known as "C" releases) for this operating system. Operating systems in extended support have only cumulative monthly security updates (known as the "B" or Update Tuesday release).
Verify that you have installed the required updates listed in the How to get this update section before installing this update.　
Customers who have purchased the Extended Security Update (ESU) for on-premises versions of these operating systems must follow the procedures in KB4522133 to continue receiving security updates after extended support ends on January 14, 2020.　For more information on ESU and which editions are supported, see KB4497181. For more information, see the ESU blog.
REMINDER All updates for .NET Framework 4.7.2, 4.7.1, 4.7, 4.6.2, 4.6.1, and 4.6 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.
The August 8, 2023 update for Windows Embedded 7 Standard and Windows Server 2008 R2 SP1 and Windows Server 2008 SP2 includes cumulative security and reliability improvements in .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2. 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
Security Improvements
CVE-2023-36899 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in applications on IIS using their parent application’s Application Pool which can lead to privilege escalation or other security bypasses. For more information see CVE 2023-36899.
CVE-2023-36873 - .NET Framework Spoofing Vulnerability
This security update addresses a vulnerability where unauthenticated remote attacker can sign ClickOnce deployments without a valid code signing certificate. For more information see CVE-2023-36873.
Quality and Reliability Improvements
There are no new Quality and Reliability Improvements in this update.
Additional information about this update
The following articles contain additional information about this update as it relates to individual product versions.
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5029654 Description of the Security and Quality Rollup for .NET Framework 2.0, 3.0, 4.6.2 for Windows Server 2008 SP2 (KB5029654)
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5029651 Description of the Security and Quality Rollup for .NET Framework 3.5.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 7 Standard and Windows Server 2008 R2 SP1 (KB5029651)
Known issues in this update
Microsoft is not currently aware of any issues in this update.
How to get this update
Before installing this update
Prerequisite:
To apply this update, you must have .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 installed.
You must install the updates listed below and restart your device before installing the latest Rollup. Installing these updates improves the reliability of the update process and mitigates potential issues while installing the Rollup and applying Microsoft security fixes.
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Operating System |
Prerequisites for installing this update |
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Windows Server 2008 SP2 |
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Windows Embedded 7 Standard and Windows Server 2008 R2 |
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Install this update
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Release Channel |
Available |
Next Step |
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Windows Update and Microsoft Update |
Yes |
None. This update will be downloaded and installed automatically from Windows Update if you are an ESU customer. |
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Microsoft Update Catalog |
Yes |
To get the standalone package for this update, go to the Microsoft Update Catalog website. |
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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:
20230808 Security update deployment information: August 8, 2023
Update replacement information
This update replaces previously released updates KB5027543 and KB5028942 and KB5028942 and KB5027540 and KB5028939 and KB5028939.
File Information
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x86 |
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x64 |
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How to obtain help and support for this update
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Help for installing updates: Windows Update FAQ
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Protect yourself online and at home: Windows Security support
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Local support according to your country: International Support
