CVE-2025-34251
HighCVSS 8.6Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
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.
Risk Assessment
An attacker with physical access could gain full control over the device, potentially leading to compromise of vehicle security and user data.
Recommendation
Update TCU firmware to version v2025.14 or later. Also restrict physical access to USB ports in vehicles.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS