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.NET Framework 3.5 / 4.8 .NET Framework 3.5 / 4.8 Update
Patch Tuesday

KB5065748

KB5065748: Cumulative update for .NET Framework, versions 3.5 and 4.8, on Windows Server 2022, September 2025. ASP.NET logging issue addressed; Chinese WPF certificate updated

In short

Addresses an issue where some ASP.NET error events fail to log and updates a certificate for Chinese language changes in WPF.

Does it affect you? Applies to: Windows Server 2022 devices with .NET Framework 3.5 or 4.8 installed.

File version
2.0.50727.9179 · 4.8.4797.0
Restart
Required

What changes

Fix 1 change

ASP.NET

Verified in package
  • Addresses an issue where some ASP.NET error events fail to appear in the Windows Event log.1

Improvement 1 change

WPF

Verified in package
  • A GB18030 certificate is updated for Chinese language changes in WPF.2
    WPF means Windows Presentation Foundation.

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
KB5062063
Replaced by
KB5066139
VersionFile versionChannel
3.5 2.0.50727.9179 General availability
4.8 4.8.4797.0 General availability

Security

No vulnerabilities are listed for this update.

Downloads (Microsoft Update Catalog)

x64 Windows Server 2022
72.6 MB
windows10.0-kb5065748-x64-ndp48.msu Main update · KB5065748 SHA-1: 594caaa5…760ff5

Updated components

50 files changed since the previous update for the same versions.

Top changed componentsFiles
WPF22
ASP.NET10

Verified in package: changed files confirm ASP.NET, WPF.

Sources

Updated
Cited passages from Microsoft's official notes (2)
  1. 1. Addressed an issue in ASP.NET where some error events fail to log properly in the Windows Event log. support.microsoft.com
  2. 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 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