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Authentication Bypass by Capture-replay


Severity High
Score 8.1/10


The remote keyless system on Renault ZOE 2021 vehicles sends 433.92 MHz RF signals from the same Rolling Codes set for each door-open request, which allows for a replay attack.

  • LOW
  • HIGH
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-294 - Authentication Bypass by Capture-replay

A capture-replay flaw exists when the design of the software makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).


Advisory Timeline

  • Published