CVE-2020-29440

Severity: medium (CVSS 4.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-11-30 · updated 2026-06-17
Weakness: CWE-295

Description

Tesla Model X vehicles before 2020-11-23 do not perform certificate validation during an attempt to pair a new key fob with the body control module (BCM). This allows an attacker (who is inside a vehicle, or is otherwise able to send data over the CAN bus) to start and drive the vehicle with a spoofed key fob.

Affected products

Tesla Model X Firmware: before 2020-11-23 — fixed in 2020-11-23

How to fix

Upgrade to a fixed version: Tesla Model X Firmware 2020-11-23. Check the vendor advisory for mitigations.

References

https://www.wired.com/story/tesla-model-x-hack-bluetooth/
https://www.wired.com/story/tesla-model-x-hack-bluetooth/

Get alerted when CVE-2020-29440 or the next vulnerability affects your stack