UPDATE 7/25:
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.NET Framework 3.5 and 4.8.1
The July 9, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections.
CVE-2024-38081 - .NET Framework Elevation of Privilege Vulnerability
This security update addresses a remote code execution vulnerability detailed in CVE-2024-38081.
Quality and Reliability Improvements
File information
For a list of the files that are provided in this update, download the file information for cumulative update.
KB5041169 Cumulative Update Preview .NET Framework 3.5 and 4.8.1 (22H2 and 23H2)
Microsoft Support: July 25, 2024 - KB5041169 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2 The July 25, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability...
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Microsoft Support:
July 9, 2024 - KB5039895 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2
.NET Framework 3.5 and 4.8.1
The July 9, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections.
Summary
Security ImprovementsCVE-2024-38081 - .NET Framework Elevation of Privilege Vulnerability
This security update addresses a remote code execution vulnerability detailed in CVE-2024-38081.
Quality and Reliability Improvements
| Winforms | - Addresses an issue with the size of memory leaks associated with AccessibleObjects held in memory due to ref-counting. |
| .NET Fundamentals | - Addresses an issue with x509 certificate use under PPL in Azure AD. |
Known issues in this update
Microsoft is not currently aware of any issues in this update.How to get this update
Install this update| Release Channel | Available | Next Step |
| Windows Update and Microsoft Update | Yes | None. This update will be downloaded and installed automatically from Windows Update. |
| Windows Update for Business | Yes | None. This update will be downloaded and installed automatically from Windows Update. |
| 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 as follows: Product: Windows 11, version 22H2 and Windows 11, version 23H2 Classification: Security Updates |
File information
For a list of the files that are provided in this update, download the file information for cumulative update.
Prerequisites
To apply this update, you must have .NET Framework 3.5 or 4.8.1 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. Source:
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