CVE-2022-42431 Memory corruption in Model 3

High 8.8 Published 29 Mar 2023 Updated 14 Feb 2025

Local attackers with privileged code execution can exploit a buffer overflow in the bcmdhd driver to escalate privileges to root on Tesla vehicles.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-42431?

CVE-2022-42431 is a high-severity memory corruption vulnerability in Tesla Model 3, published on 29 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability allows local attackers to escalate privileges on affected Tesla vehicles. An attacker must first obtain the ability to execute privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the bcmdhd driver. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-17544.

Weakness: CWE-120

Which versions are affected by CVE-2022-42431?

It affects 1 product.

Products include Tesla Model 3 Firmware.

How do I fix CVE-2022-42431?

No fix has been published for CVE-2022-42431 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-42431 being exploited?

There is no known exploitation of CVE-2022-42431 in the wild and no public exploit code.

Sources

Also known as GHSA-gcjr-346m-7x54.