This article describes the security and cumulative update for 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019. Security Improvements. CVE-2024-21409 - .NET Framework Remote Code Execution Vulnerability. This security update addresses a remote code execution vulnerability detailed in CVE-2024-21409.

The April 9, 2024 update for Windows 10, version 1607 and Windows Server 2016 includes security and cumulative reliability improvements in .NET Framework 4.8. We recommend that you apply this update as part of your regular maintenance routines.

The September 12, 2023 update for Azure Stack HCI, version 22H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8. We recommend that you apply this update as part of your regular maintenance routines.

The Support Diagnostics Platform (SDP) manifest file is designed to collect relevant registry data, configuration files, and event log information to help troubleshoot common Forefront Client Security support issues. This article provides details on the data collected by the Forefront Client Security Troubleshooter. More Information

Note: The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section.MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital ...

Microsoft .NET Framework 4.8.1 is a highly compatible and in-place update to .NET Framework 4.8. It includes native support for the Arm64 architecture (Windows 11+), accessibility improvements as well as other improvements. For a complete list of improvements see: .NET Framework 4.8.1 release notes.

For more information about the .NET Framework 4.7 and the .NET Framework Developer Center, see The .NET Framework 4.7. Command-line switches for this update. For more information about the various command-line options that are supported by this update, see the "Command-Line options" section in the following MSDN topic:

Configuration Manager console terminates unexpectedly on Configuration Manager current branch, version 2006 - Microsoft Support.

Note: The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section.MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital ...

Security and Quality Rollup for .NET Framework 4.5.2 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB4578956) - Microsoft Support.