The Update BureauKB5065744: Cumulative update for .NET Framework, versions 3.5 and 4.7.2, on Windows 10 1809 and Windows Server 2019, September 2025. ASP.NET event logging and GB18030 certificate updated
The update addresses an ASP.NET problem that prevented some error events from being logged and updates a certificate for Chinese language changes. It includes no new security improvements.
Does it affect you? Applies to: Devices running Windows 10, version 1809, or Windows Server 2019 with .NET Framework 3.5 or 4.7.2 installed.
What changes
Fix 1 change
ASP.NET
For: ASP.NET application administrators
- The update addresses a problem that caused some ASP.NET error events to fail to appear in the Windows Event log.1
Improvement 1 change
WPF
- The GB18030 certificate is updated for Chinese language changes.2
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2025-09-09
- Classification
- Updates
- Type
- Cumulative update
- Restart
- Required
- Replaces
- KB5062070
- Replaced by
- KB5066143
| Version | File version | Channel |
|---|---|---|
| 3.5 | 2.0.50727.9066 | General availability |
| 4.7.2 | 4.7.4136.0 | General availability |
Security
No vulnerabilities are listed for this update.
Downloads (Microsoft Update Catalog)
Updated components
75 files changed since the previous update for the same versions.
| Top changed components | Files |
|---|---|
| WPF | 33 |
| ASP.NET | 15 |
Verified in package: changed files confirm ASP.NET, WPF.
Sources
Cited passages from Microsoft's official notes (2)
-
1.
Addressed an issue in ASP.NET where some error events fail to log properly in the Windows Event log.
support.microsoft.com -
2.
Addressed an update for GB18030 certificate for Chinese language changes.
support.microsoft.com
Checked automatically: 8 of 8 checks passed, 2 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 4/5. 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