CVE-2021-38365: Tonewinner Winner Desktop Speakers Firmware

Low severity, CVSS 3.7. EPSS: 1.2% chance of exploitation in the next 30 days.

Winner (aka ToneWinner) desktop speakers through 2021-08-09 allow remote attackers to recover speech signals from the power-indicator LED via a telescope and an electro-optical sensor, aka a "Glowworm" attack.

Affected products

• Tonewinner Winner Desktop Speakers Firmware: up to and including 2021-08-09

Published 2021-08-10. Last modified 2026-07-05.