CVE tracker / CVE-2024-43484

CVE-2024-43484

CVE-2024-43484 is the .NET, .NET Framework, and Visual Studio Denial of Service Vulnerability. Microsoft rates it Important, CVSS 7.5. It is not in CISA's Known Exploited Vulnerabilities catalog. Published October 8, 2024.

Risk summary

HighDenial of Service

7.5

CVSS v3 base

3.0%

EPSS: chance of exploitation in 30 days

High

Severity

Important

Microsoft's rating

Less Likely

Microsoft: exploitation

In CISA KEV

How to fix it

Microsoft lists 85 affected products and the update that fixes each:

KB5044021 · fixed build 4.8.04762.01
Microsoft .NET Framework 4.8
KB5044028 · fixed build 4.8.1.09277.02
Microsoft .NET Framework 3.5 AND 4.8.1
KB5044030 · fixed build 4.8.1.09277.02
Microsoft .NET Framework 3.5 AND 4.8.1
KB5044033 · fixed build 4.8.109277.02
Microsoft .NET Framework 3.5 AND 4.8.1
KB5044089 · fixed build 4.8.04762.01, 4.7.04115.01
Microsoft .NET Framework 3.5 AND 4.8, Microsoft .NET Framework 3.5 AND 4.7.2
KB5044090 · fixed build 4.8.1.09277.02, 4.8.04762.01
Microsoft .NET Framework 3.5 AND 4.8.1, Microsoft .NET Framework 3.5 AND 4.8
KB5044091 · fixed build 4.8.1.09277.02, 4.8.04762.01
Microsoft .NET Framework 3.5 AND 4.8.1, Microsoft .NET Framework 3.5 AND 4.8
KB5044092 · fixed build 4.8.1.09277.02, 4.8.04762.01
Microsoft .NET Framework 3.5 AND 4.8.1, Microsoft .NET Framework 3.5 AND 4.8
KB5044095 · fixed build 4.8.04762.02, 3.5.1.30729.8974, 4.7.04115.01
Microsoft .NET Framework 4.8, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
KB5044096 · fixed build 4.8.04762.01, 3.5.30729.8974, 4.7.4115.01
Microsoft .NET Framework 4.8, Microsoft .NET Framework 3.5, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
KB5044097 · fixed build 4.8.04762.01, 4.7.04115.01
Microsoft .NET Framework 4.8, Microsoft .NET Framework 3.5, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
KB5044098 · fixed build 3.5.30729.8973, 3.0.30729.8974, 4.7.04115.01
Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.0 Service Pack 2, Microsoft .NET Framework 2.0 Service Pack 2, Microsoft .NET Framework 4.6.2
KB5044099 · fixed build 4.8.04762.02, 4.8.1.9277.03
Microsoft .NET Framework 3.5 AND 4.8, Microsoft .NET Framework 3.5 AND 4.8.1
KB5044286 · fixed build 10.0.10240.20796
Microsoft .NET Framework 4.6/4.6.2

And 4 more updates; Microsoft's Security Update Guide has the full table.

What Microsoft changed

October 11, 2024: Corrected Build Numbers in the Security Updates table. This is an informational change only.
October 8, 2024: Information published.
October 23, 2024: Revised the Security Updates table to include PowerShell 7.2 and PowerShell 7.4 because these versions of PowerShell 7 are affected by this vulnerability. See https://github.com/PowerShell/Announcements/issues/70 for more information.

Details

Weakness: CWE-407: Inefficient Algorithmic Complexity
Publicly disclosed (Microsoft): No
Exploited (Microsoft): No
Known exploited (CISA KEV): Not listed
Published: October 8, 2024
Last revised: October 23, 2024

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.