Authentication Bypass in Tesla Telematics Control Unit Firmware
CVE-2025-34251
What is CVE-2025-34251?
The Tesla Telematics Control Unit (TCU) firmware prior to version 2025.14 is susceptible to an authentication bypass vulnerability. This issue arises due to the TCU's implementation of the Android Debug Bridge (adbd). Despite the existence of a 'lockdown' check that disables adb shell commands, it still allows adb push/pull and adb forward operations. This weakness can be exploited by an attacker with physical access to the device, enabling them to write arbitrary files to writable locations. Consequently, the attacker can modify critical kernel settings, causing scripts to be executed with elevated root privileges. This vulnerability poses significant security risks, as it allows unauthorized access to system-level functions.
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Affected Version(s)
Telematics Control Unit (TCU) * < 2025.14
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
CVSS V4
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved