Critical Malicious Code Vulnerability in buffermxor Package

buffermxor Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-16306: Malicious code in buffermxor (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The buffermxor package is an npm library designed for manipulating buffer data in Node.js applications. It provides various utilities for handling binary data efficiently. However, it has been identified to contain malicious code that poses significant security risks to applications utilizing this package.

Vulnerability Detail

The vulnerability in the buffermxor package originates from the inclusion of malicious code that can compromise the integrity and security of applications. This code can potentially lead to unauthorized access, data breaches, or other malicious activities. The issue affects all versions of the package starting from version 0, making it critical for developers to take immediate action to mitigate risks.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall buffermxor

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary workaround, consider removing the buffermxor package from your project until a secure version is released. You can do this by executing the command: 'npm uninstall buffermxor'. Additionally, review your codebase for any dependencies that may rely on this package.

Conclusion

The buffermxor package has been identified to contain malicious code, posing a serious threat to applications that utilize it. Developers are urged to take immediate action by updating or removing the package to safeguard their applications. Utilizing tools like Vulert can help monitor for such vulnerabilities effectively.

See every vulnerability recorded for buffermxor →

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FAQ

The buffermxor package is used for manipulating buffer data in Node.js applications, providing utilities for efficient binary data handling.

You can check if your application is affected by using Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to use the Vulert playground without signup.

If immediate updates are not possible, consider removing the package from your project as a temporary measure to mitigate risks.

As of now, there is no specific patched version mentioned. It is crucial to monitor the package repository for updates.

Failing to address this vulnerability can lead to unauthorized access, data breaches, and other malicious activities that could compromise your application's security.

Related vulnerabilities

Recent vulnerabilities recorded for buffermxor.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall buffermxor

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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