CVE-2025-34251

Tesla Telematics Control Unit (TCU) firmware prior to v2025.14 contains an authentication bypass vulnerability. The TCU runs the Android Debug Bridge (adbd) as root and, despite a “lockdown” check that disables adb shell, still permits adb push/pull and adb forward. Because adbd is privileged and the device’s USB port is exposed externally, an attacker with physical access can write an arbitrary file to a writable location and then overwrite the kernel’s uevent_helper or /proc/sys/kernel/hotplug entries via ADB, causing the script to be executed with root privileges.

CVSS

No CVSS.

References

Link	Resource
https://www.nccgroup.com/research-blog/technical-advisory-tesla-telematics-control-unit-adb-auth-bypass/
https://www.tesla.com/
https://www.vulncheck.com/advisories/tesla-tcu-auth-bypass

Configurations

No configuration.

History

09 Oct 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) El firmware de la Unidad de Control Telemático (TCU) de Tesla anterior a la v2025.14 contiene una vulnerabilidad de omisión de autenticación. La TCU ejecuta el Android Debug Bridge (adbd) como root y, a pesar de una verificación de 'bloqueo' que deshabilita adb shell, aún permite adb push/pull y adb forward. Debido a que adbd tiene privilegios y el puerto USB del dispositivo está expuesto externamente, un atacante con acceso físico puede escribir un archivo arbitrario en una ubicación con permisos de escritura y luego sobrescribir las entradas uevent_helper del kernel o /proc/sys/kernel/hotplug a través de ADB, haciendo que el script se ejecute con privilegios de root.

Information

Published : 2025-10-07 00:15

Updated : 2026-10-09 10:10

NVD link : CVE-2025-34251

Mitre link : CVE-2025-34251

CVE.ORG link : CVE-2025-34251

JSON object : View

Products Affected

No product.

CWE

CWE-269

Improper Privilege Management

CWE-288

Authentication Bypass Using an Alternate Path or Channel

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