The Update BureauKB5041948: Cumulative update for .NET Framework, versions 3.5 and 4.8, on Windows Server 2022, August 2024. UI automation and large ASP.NET project slowdowns addressed
In short
Addresses .NET reliability issues, including ListView rendering and conflicts that could slow large ASP.NET projects in Visual Studio. It adds no new security improvements.
Does it affect you? Applies to: Devices running Windows Server 2022 with .NET Framework 3.5 or 4.8 installed.
What changes
Fixes 5 changes
.NET Libraries
- The zlib file is updated to the latest version.1
.NET Fundamentals
Verified in package
4 items
- An issue rendering ListView subitems in UI automation is addressed.2
- An issue involving serialization binder bypasses with BinaryFormatter mutations is addressed.3
-
ASP.NET WebForms SmartNavigation no longer has the referenced Recreational Software Advisory Council and content-rating metadata issue.4
Addresses an issue to remove meta tag information referencing "Recreational Software Advisory Council" and the content-rating schema from the ASP.Net WebForms SmartNavigation feature.
-
Conflicts between design-time and debug/runtime compilation that could slow work on large ASP.NET projects are addressed.5
.NET Framework interaction with Visual Studio is adjusted to avoid conflicts between design-time and debug/runtime compilation of some .NET Framework ASP.NET projects.
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2024-08-13
- Classification
- Updates
- Type
- Cumulative update
- Restart
- Required
- Replaces
- KB5037930
- Replaced by
- KB5044025
| Version | File version | Channel |
|---|---|---|
| 3.5 | 2.0.50727.9179 | General availability |
| 4.8 | 4.8.4749.0 | General availability |
Security
No vulnerabilities are listed for this update.
Downloads (Microsoft Update Catalog)
x64
Windows Server 2022
72.0 MB
Updated components
72 files changed since the previous update for the same versions.
| Top changed components | Files |
|---|---|
| WPF | 22 |
| .NET runtime (CLR) | 14 |
| ASP.NET | 10 |
Verified in package: changed files confirm .NET Fundamentals.
Sources
Updated
Cited passages from Microsoft's official notes (5)
-
1.
Addresses an issue to update zlib file to latest version.
support.microsoft.com -
2.
Addresses an issue to render UI automation ListView sub items.
support.microsoft.com -
3.
Addresses an issue with bypass serialization binder with binary formatter mutations.
support.microsoft.com -
4.
Addresses an issue to remove meta tag information referencing "Recreational Software Advisory Council" and the content-rating schema from ASP.Net WebForms SmartNavigation feature.
support.microsoft.com -
5.
Addresses an issue .NET Framework interaction with Visual Studio to avoid conflicts between design-time and debug/runtime compilation of some .NET Framework ASP.NET project that could result in slowed developer experience for large projects.
support.microsoft.com
Checked automatically: 8 of 8 checks passed, 5 quoted passages · compared with Microsoft's page on Oct 20, 2026
- Quotes found in the official pages: passed
- Numbers found in the sources: passed
- Vulnerabilities from the dossier only: passed
- Links to allowed domains only: passed
- Every official change covered: passed
- Readable plain text: passed
- Changes confirmed by the file list: passed
- Sources agree: passed
A second AI read the text against the sources: correctness 5/5, clarity 4/5, completeness 5/5. How we work
Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake