CVE-2024-43498: Critical Remote Code Execution Vulnerability in .NET Package

dotnet Updated 02 Oct 2025

Summary

20/11/2024
Yes i
Critical
Not published

CVE-2024-43498: .NET and Visual Studio Remote Code Execution Vulnerability. Affects dotnet versions >= 9.0.0, < 9.0.1. Fixed in 9.0.1. How to fix ↓

Also tracked for

The same CVE-2024-43498 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.

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Background

The .NET package, developed by Microsoft, is a popular framework used for building and running applications on various platforms. It provides a comprehensive set of tools and libraries that enable developers to create robust and scalable applications. However, the .NET framework is susceptible to vulnerabilities that can be exploited if not properly managed, leading to severe security risks.

Vulnerability Detail

The vulnerability identified as CVE-2024-43498 is a critical remote code execution flaw in the .NET package version 9.0.0. This vulnerability allows an attacker to execute arbitrary code on the affected system by sending specially crafted requests. The flaw arises from improper validation of input, which can lead to unauthorized access and control over the system. If exploited, this vulnerability could result in significant data breaches, loss of integrity, and disruption of services.

How To Fix

Minimum fixed version

9.0.1

This is the first release that contains the fix.

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Workaround

As a temporary measure, users can restrict access to the affected application or implement network-level controls to limit exposure to untrusted sources. Additionally, monitoring and logging can help detect any unusual activity that may indicate an attempted exploit.

Conclusion

CVE-2024-43498 represents a significant security risk for users of the .NET package version 9.0.0. It is crucial to address this vulnerability by updating to a patched version and implementing necessary workarounds to protect against potential exploits. Regular monitoring and proactive security measures are essential to safeguard applications.

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FAQ

CVE-2024-43498 is a critical remote code execution vulnerability found in the .NET package version 9.0.0, allowing attackers to execute arbitrary code.

You can use the Vulert platform to check if your application is affected by this vulnerability. Simply upload your manifest file like package-lock.json to monitor and alert for vulnerabilities.

Exploitation of this vulnerability can lead to unauthorized access, data breaches, and potential control over the affected system, posing significant risks to security and data integrity.

Yes, a patch is available. Users should update their .NET package to a version beyond 9.0.0 to mitigate the risks associated with this vulnerability.

If immediate updates are not possible, implement network-level controls to limit access to the application and monitor for any suspicious activity.

Related vulnerabilities

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How To Fix

Minimum fixed version

9.0.1

This is the first release that contains the fix.

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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