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.NET Framework 3.5 / 4.8.1 .NET Framework 3.5 / 4.8.1 Optional preview
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KB5048161

KB5048161: Cumulative update for .NET Framework, versions 3.5 and 4.8.1, on Windows 10 22H2, November 2024. .NET runtime crash conditions addressed

In short

Addresses crashes caused by certain interactions involving .NET runtime assemblies and Windows code-integrity policy updates.

Does it affect you? Applies to: Devices running Windows 10, version 22H2, with .NET Framework 3.5 or 4.8.1 installed.

File version
2.0.50727.9179 · 4.8.9290.0
Restart
Required

What changes

Fix 1 change

.NET Runtime

For: Devices with .NET Framework 3.5 or 4.8.1

  • Addresses crashes that can happen when .NET runtime assemblies interact with Windows code-integrity policy updates.1
    Addresses crashes involving multi-module assembly native image usage and OS code integrity enforcement policy updates.

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2024-11-21
Classification
Updates
Type
Cumulative update
Restart
Required
VersionFile versionChannel
3.5 2.0.50727.9179 General availability
4.8.1 4.8.9290.0 General availability

Security

No vulnerabilities are listed for this update.

Updated components

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

Top changed componentsFiles
.NET runtime (CLR)18

Sources

Updated
Cited passages from Microsoft's official notes (1)
  1. 1. Address crashes that can occur due to certain interactions between multi-module assembly native image usage and OS code integrity enforcement policy updates. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 1 quoted passage · compared with Microsoft's page on Nov 8, 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