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.
                
            Metrics
Affected Vendors & Products
References
        History
                    Wed, 08 Oct 2025 13:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | Google Google android Tesla Tesla telematics Control Unit Tesla tesla | |
| Vendors & Products | Google Google android Tesla Tesla telematics Control Unit Tesla tesla | 
Tue, 07 Oct 2025 16:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | ssvc 
 | 
Mon, 06 Oct 2025 22:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | 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. | |
| Title | Tesla Telematics Control Unit (TCU) < v2025.14 Authentication Bypass | |
| Weaknesses | CWE-269 CWE-288 | |
| References |  | |
| Metrics | cvssV4_0 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: VulnCheck
Published: 2025-10-06T23:35:22.949Z
Updated: 2025-10-24T23:03:14.853Z
Reserved: 2025-04-15T19:15:22.578Z
Link: CVE-2025-34251
 Vulnrichment
                        Vulnrichment
                    Updated: 2025-10-07T16:00:00.584Z
 NVD
                        NVD
                    Status : Awaiting Analysis
Published: 2025-10-07T00:15:34.357
Modified: 2025-10-08T19:38:32.610
Link: CVE-2025-34251
 Redhat
                        Redhat
                    No data.