The Update Bureau
Addresses missing ASP.NET error events in the Windows Event log and a WPF GB18030 certificate update. You must restart after installation if affected files are in use.
Check the newer update, KB5066131Key changes 2 changes
The update addresses ASP.NET error events that might not be logged properly and a WPF update for the GB18030 certificate used in Chinese language changes.
Check the newer update, KB5066133Key changes 2 changes
The update addresses ASP.NET event logging and a GB18030 certificate update for Chinese-language changes. If you already installed the August 26 release, you do not need to take action.
Check the newer update, KB5066130Key changes 2 changes
The update addresses ASP.NET error events that might not be logged properly and an update related to the GB18030 certificate for Chinese-language changes.
Check the newer update, KB5066134Key changes 2 changes
Addresses .NET type-converter concurrency problems and error-reporting dialogs linked to DLL loading and OS code integrity checks. It adds no new security improvements; devices that already installed it need no action.
Check the newer update, KB5064401Key changes 2 changes
.NET type conversion concurrency and error dialogs from some library loads are addressed. The Windows 11 22H2 package is now available through WSUS and the Update Catalog.
Check the newer update, KB5064403Key changes 2 changes
The update addresses a .NET type-conversion concurrency issue and error dialogs triggered by .NET DLL loads under OS code integrity enforcement. If you installed it previously, the July release requires no action.
Check the newer update, KB5064400Key changes 2 changes
Addresses a .NET TypeDescriptor concurrency issue and error-reporting dialogs triggered by interactions with Windows code integrity enforcement. It includes no new security improvements.
Check the newer update, KB5065753Key changes 2 changes
Addresses an issue with .NET file and directory operations on UNC shares. It contains no new security improvements.
Check the newer update, KB5056579Key changes 1 change
The update addresses an issue with .NET applications that use file and directory APIs on network shares. If you already installed the April 8, 2025 Security and Quality Rollup, no action is needed.
Check the newer update, KB5056578Key changes 1 change
The update addresses a WPF printing issue involving large numbers of pages and a .NET file and directory API issue on UNC shares. A restart might be needed if affected files are in use.
Check the newer update, KB5062061Key changes 2 changes
An opt-in WPF setting addresses an OutOfMemory exception when printing many pages. The fix must be enabled in the app.config file.
Check the newer update, KB5054979Key changes 1 change
An opt-in WPF fix addresses an out-of-memory problem when printing many pages. The update contains no new security improvements.
Key changes 1 change
Addresses CVE-2025-21176, a remote code execution vulnerability, and rare cases where a thread entering the .NET runtime for the first time could trigger an infinite loop.
Check the newer update, KB5066131Key changes 1 CVE · 2 changes
The update addresses a .NET Framework remote code execution vulnerability and a rare infinite-loop issue when a thread first enters the CLR. It is no longer available through Windows Update.
Check the newer update, KB5066133Key changes 1 CVE · 2 changes
The update addresses CVE-2025-21176, a .NET Framework remote code execution vulnerability, and a rare case where a thread could enter an infinite loop.
Check the newer update, KB5066130Key changes 1 CVE · 2 changes
The update addresses a .NET Framework remote code execution vulnerability and a rare issue that could cause an infinite loop when a thread first enters the CLR.
Check the newer update, KB5066134Key changes 1 CVE · 2 changes
Addresses .NET runtime crashes linked to certain assembly and Windows code-integrity interactions. Restart the computer after installation if affected files are in use.
Check the newer update, KB5049622Key changes 1 change
Addresses crashes caused by certain interactions involving .NET runtime assemblies and Windows code-integrity policy updates.
Key changes 1 change
Addresses several .NET reliability issues, including a Visual Studio ASP.NET compilation error and a rare CLR infinite loop. It adds no new security improvements.
Check the newer update, KB5048162Key changes 7 changes
.NET Framework's ASP.NET design-time compilation error and several CLR and user-group lookup issues are addressed. Windows Update for Business receives these changes in its next security update, not through this release.
Check the newer update, KB5049621Key changes 7 changes
Addresses an ASP.NET error in Visual Studio and several .NET runtime and user-group lookup issues on Windows Server 2022.
Check the newer update, KB5049625Key changes 7 changes
Addresses two .NET Framework denial-of-service vulnerabilities and issues that could cause SQL CLR runtime exceptions or prevent applications from targeting .NET Framework.
Check the newer update, KB5049622Key changes 2 CVEs · 4 changes
The update addresses two .NET Framework denial-of-service vulnerabilities and reliability issues affecting SQL CLR scenarios and applications targeting .NET Framework.
Check the newer update, KB5049621Key changes 2 CVEs · 2 changes
Addresses two .NET Framework denial-of-service vulnerabilities and reliability issues involving SQL CLR hosted scenarios and applications targeting .NET Framework.
Check the newer update, KB5049625Key changes 2 CVEs · 4 changes