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.NET Framework 3.5 / 4.8.1 .NET Framework 3.5 / 4.8.1 Security update
Patch Tuesday

KB5044035

KB5044035: Cumulative update for .NET Framework, versions 3.5 and 4.8.1, on Windows Server 2022, October 2024. Two denial-of-service flaws addressed; SQL CLR exceptions targeted

In short

Addresses two .NET Framework denial-of-service vulnerabilities and reliability issues involving SQL CLR hosted scenarios and applications targeting .NET Framework.

Does it affect you? Applies to: Windows Server 2022 devices with .NET Framework 3.5 or 4.8.1 installed.

File version
2.0.50727.9179 · 4.8.9277.0
Security
2 fixed
Restart
Required

What changes

Fixes 4 changes

.NET Framework

2 items
  • A denial-of-service vulnerability in .NET Framework is addressed.1
    CVE-2024-43483.
  • A second denial-of-service vulnerability in .NET Framework is addressed.2
    CVE-2024-43484.

.NET Libraries

  • Runtime exceptions in certain SQL CLR hosted scenarios after May cumulative updates are addressed.3

.NET Fundamentals

  • An issue that prevented applications from targeting .NET Framework is addressed.4

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
KB5041964, KB5039907
Replaced by
KB5049625
VersionFile versionChannel
3.5 2.0.50727.9179 General availability
4.8.1 4.8.9277.0 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 Server 2022
72.0 MB
windows10.0-kb5044035-x64-ndp481.msu Main update · KB5044035 SHA-1: c6081dbd…cdfb56

Updated components

94 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 (4)
  1. 1. CVE-2024-43483 - .NET Framework Denial of service vulnerability This security update addresses a denial-of-service vulnerability support.microsoft.com
  2. 2. CVE-2024-43484 - .NET Framework Denial of service vulnerability This security update addresses a 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
  4. 4. Addresses an issue where applications cannot target .NET Framework. support.microsoft.com
Checked automatically: 7 of 8 checks passed, 4 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 4/5, 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