CVE-2025-55204

CRITICAL EPSS 44.2%
Published Jan 5, 20265mo ago · Modified Jun 17, 20262w ago
9.6 CVSS 3.1
Critical
Find Similar
Published Jan 5, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
9.6
Exploitability
2.8
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
44.2% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-79 Cross-site Scripting Injection
CWE-94 Improper Control of Generation of Code (Code Injection) Injection

Affected Products 1

VendorProductVersionRange
muffonmuffon* <2.3.0

References 3

  • drive.google.com https://drive.google.com/file/d/1eCPCQ6leuVM_vecfofFv04c0t9isCBqR/view?usp=sharing
    Exploit
  • github.com https://github.com/staniel359/muffon/releases/tag/v2.3.0
    ProductRelease Notes
  • github.com https://github.com/staniel359/muffon/security/advisories/GHSA-gc3f-gqph-522q
    ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.