CVE Catalog

CVE-2025-55204

High
Published: Translated: NVD NIST

Summary

Muffon is a cross-platform music streaming client for desktop. Versions prior to 2.3.0 have a one-click Remote Code Execution (RCE) vulnerability. An attacker can exploit this by embedding a crafted `muffon://` link on a website they control, and when a victim visits the site or clicks the link, the browser triggers Muffon's custom URL handler, leading to RCE without further interaction.

Risk Assessment

The risk to the organization is critical because the attack requires only a user visiting a page or clicking a link. This can lead to full compromise of the victim's machine, data theft, or malware propagation within the corporate network.

Recommendation

Immediately update Muffon to version 2.3.0 or later, which contains the fix. Additionally, inform users about the risk of clicking unknown `muffon://` links and consider restricting custom URL protocols in the security policy.

Related vulnerabilities

Original NVD description (English source)

muffon is a cross-platform music streaming client for desktop. Versions prior to 2.3.0 have a one-click Remote Code Execution (RCE) vulnerability in. An attacker can exploit this issue by embedding a specially crafted `muffon://` link on any website they control. When a victim visits the site or clicks the link, the browser triggers Muffon’s custom URL handler, causing the application to launch and process the URL. This leads to RCE on the victim's machine without further interaction. Version 2.3.0 patches the issue.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS