CVE-2021-40826: Clementine-Player Clementine

High severity, CVSS 7.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Clementine Music Player through 1.3.1 is vulnerable to a User Mode Write Access Violation, affecting the MP3 file parsing functionality at clementine+0x3aa207. The vulnerability is triggered when the user opens a crafted MP3 file or loads a remote stream URL that is mishandled by Clementine. Attackers could exploit this issue to cause a crash (DoS) of the clementine.exe process or achieve arbitrary code execution in the context of the current logged-in Windows user.

Affected products

• Clementine-Player Clementine: up to and including 1.3.1

Published 2021-12-15. Last modified 2026-06-17.