Win Update KB5027119 Cumulative Update .NET Framework 3.5 and 4.8.1 (22H2)

June 13, 2023 - KB5027119 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2​

The June 13, 2023 update for Windows 11, version 22H2 includes cumulative security and 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 Improvements

CVE-2023-24897 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in the MSDIA SDK where corrupted PDBs can cause heap overflow, leading to a crash or remove code execution. For more information see CVE-2023-24897.

CVE-2023-29326 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in WPF where the BAML offers other ways to instantiate types that leads to an elevation of privilege. For more information see CVE-2023-29326.

CVE-2023-24895 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in the WPF XAML parser where an unsandboxed parser can lead to remote code execution. For more information see CVE-2023-24895.

CVE-2023-24936 - .NET Framework Elevation of Privilege Vulnerability
This security update addresses a vulnerability in bypass restrictions when deserializing a DataSet or DataTable from XML, leading to an elevation of privilege. For more information see CVE-2023-24936.

CVE-2023-29331 - .NET Framework Denial of Service Vulnerability
This security update addresses a vulnerability where the AIA fetching process for client certificates can lead to denial of service. For more information see CVE 2023-29331.

CVE-2023-29330 - .NET Framework Denial of Service Vulnerability
This security update addresses a vulnerability where X509Certificate2 file handling can lead to denial of service. For more information see CVE-2023-32030.

Quality and Reliability Improvements

WPF1

- Addresses ArgumentNullException that can arise in apps, or libraries, that directly set the IsOpen property on ToolTips or their Popups. Addresses an issue to avoid ArgumentOutOfRangeException when ControlTemplate has two or more ItemsPresenter sharing a single ItemsCollection. Addresses Null Reference Exception when ToolTip is visible property is overridden to be always be false. Addresses Null Reference Exception reloading XPS document after adjusting column width for Datagrid and Gridview controls. Addresses an issue where using IsReadOnly property of TextBox and RichTextBox in ControlTemplate.Triggers throws an exception.

SQL Connectivity

- Addresses an issue where SQL connection created is not terminated by the library when this error is thrown or is leaked in the client application.

1Windows Presentation Foundation (WPF)

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 KB5025823
Workaround	To mitigate this issue, see KB5025823.

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 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.

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KB5026515 Cumulative Update Preview .NET Framework 3.5 and 4.8.1 (22H2)

UPDATE 6/13: https://www.elevenforum.com/t/kb5027119-cumulative-update-net-framework-3-5-and-4-8-1-22h2.15603/ May 24, 2023 - KB5026515 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 The May 24, 2023 update for Windows 11, version 22H2 includes...

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