CVE-2023-34406: Mercedes-Benz Headunit NTG6 Mercedes-Benz User Experience

Low severity, CVSS 3.3. EPSS: 0.2% chance of exploitation in the next 30 days.

An issue was discovered on Mercedes Benz NTG 6. A possible integer overflow exists in the user data import/export function of NTG (New Telematics Generation) 6 head units. To perform this attack, local access to USB interface of the car is needed. With prepared data, an attacker can cause the User-Data service to fail. The failed service instance will restart automatically.

Affected products

• Mercedes-Benz Headunit NTG6 Mercedes-Benz User Experience: up to and including 2021

Published 2025-02-13. Last modified 2026-06-17.