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.NET Framework 3.5 / 4.8 .NET Framework 3.5 / 4.8 Security update
Patch Tuesday

KB5044022

KB5044022: Cumulative update for .NET Framework, versions 3.5 and 4.8, on Windows 10 1809 and Windows Server 2019, October 2024. .NET denial-of-service flaws and SQL CLR exceptions addressed

In short

The update addresses two .NET Framework denial-of-service vulnerabilities and runtime exceptions in certain SQL CLR hosted scenarios.

Does it affect you? Applies to: Devices running Windows 10, version 1809, or Windows Server 2019 with .NET Framework 3.5 or 4.8 installed.

File version
2.0.50727.9066 · 4.8.4762.0
Security
2 fixed
Restart
Required

What changes

Fixes 3 changes

.NET Framework

2 items
  • Addresses a denial-of-service vulnerability in .NET Framework.1
    CVE-2024-43483.
  • Addresses a denial-of-service vulnerability in .NET Framework.2
    CVE-2024-43484.

.NET Libraries

  • Addresses runtime exceptions in certain SQL CLR hosted scenarios caused by May cumulative updates.3

Technical details

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

Data sheet

Released
2024-10-08
Classification
Security Updates
Type
Cumulative update
Restart
Required
Replaces
KB5041974, KB5039886
Replaced by
KB5049615
VersionFile versionChannel
3.5 2.0.50727.9066 General availability
4.8 4.8.4762.0 General availability

Security

2 vulnerabilities fixed
2 not rated
VulnerabilitySeverityCVSS
CVE-2024-43483
.NET, .NET Framework, and Visual Studio Denial of Service Vulnerability
 Not rated —
CVE-2024-43484
.NET, .NET Framework, and Visual Studio Denial of Service Vulnerability
 Not rated —

Downloads (Microsoft Update Catalog)

x64 Windows 10 Enterprise LTSC 2019 / Windows Server 2019
88.9 MB
windows10.0-kb5044022-x64-ndp48.msu Main update · KB5044022 SHA-1: 5ded8ec4…7a96c3
x86 Windows 10 Enterprise LTSC 2019
49.8 MB
windows10.0-kb5044022-x86-ndp48.msu Main update · KB5044022 SHA-1: 8491d337…1c2881

Updated components

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

Top changed componentsFiles
WPF28
.NET runtime (CLR)12
ASP.NET10

Sources

Updated
Cited passages from Microsoft's official notes (3)
  1. 1. CVE-2024-43483 - .NET Framework Denial of service vulnerability support.microsoft.com
  2. 2. CVE-2024-43484 - .NET Framework Denial of service vulnerability support.microsoft.com
  3. 3. Addresses an issue with May cumulative updates causing customers to observe runtime exceptions in certain SQL CLR hosted scenarios. support.microsoft.com
Checked automatically: 7 of 8 checks passed, 3 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: not 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