Tesla Model 3 VCSEC Vulnerability Allows Attackers to Execute Arbitrary Code

A critical vulnerability in Tesla Model 3’s vehicle security systems has exposed thousands of cars to potential remote attacks, cybersecurity researchers revealed this week.

Designated CVE-2025-2082, the flaw allows attackers within wireless range to execute arbitrary code on the car’s Vehicle Controller Security (VCSEC) module, a component controlling critical functions like immobilization and tire pressure monitoring.

The flaw stems from an integer overflow in the VCSEC module’s handling of certificate data from the Tire Pressure Monitoring System (TPMS).

Attackers can exploit this by sending manipulated TPMS messages, triggering memory corruption that bypasses security checks.

This grants access to the Controller Area Network (CAN) bus, enabling unauthorized commands such as unlocking doors or disabling the immobilizer.

• CVSS Score: 7.5 (High).
• Attack Vector: Adjacent network (no authentication required).
• Affected Models: Tesla Model 3 vehicles running firmware versions prior to 2024.14.

Discovery and Disclosure

The vulnerability was uncovered by researchers from cybersecurity firm Synacktiv-Thomas Imbert, Vincent Dehors, and David Berard-during the Pwn2Own 2024 hacking competition.

Their exploit chain demonstrated how TPMS sensors, typically used for tire pressure alerts, could serve as an entry point to hijack the VCSEC module via Bluetooth Low Energy (BLE) and Ultra-Wideband (UWB) protocols.

Synacktiv’s technical analysis revealed how malformed certificate responses could overwrite memory in the VCSEC, leading to remote code execution.

The team responsibly disclosed the flaw to Tesla in March 2024, with a coordinated public advisory released on April 30, 2025.

Tesla addressed the vulnerability in its 2024.14 firmware update, released shortly after disclosure.

The patch modifies certificate validation logic to prevent integer overflow and memory corruption. Owners are urged to ensure their vehicles are updated via over-the-air (OTA) patches.

This incident highlights growing concerns about connected vehicle security. The VCSEC exploit underscores how non-critical systems like TPMS can become attack vectors for compromising safety-critical components.

Key takeaways:

• Third-party integrations (e.g., TPMS) require rigorous security audits.
• Wireless attack surfaces (BLE/UWB) demand robust encryption and validation.
• Automotive zero-day research is critical as vehicles evolve into software-defined platforms.

Tesla’s rapid patch deployment reflects its mature security posture, but the discovery adds to a string of recent automotive vulnerabilities.

In 2024 alone, researchers demonstrated exploits targeting infotainment systems, keyless entry, and autonomous driving modules across multiple manufacturers.

As vehicles grow more interconnected, automakers face mounting pressure to adopt security-by-design principles, ensuring even peripheral systems are hardened against exploitation.

For now, Tesla owners can mitigate risks by applying updates promptly and avoiding unauthorized third-party accessories.

This vulnerability serves as a stark reminder: in the era of smart cars, every sensor is a potential gateway.

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