(Pwn2Own) Autel MaxiCharger AC Elite Home USB Authentication Bypass Vulnerability

July 15th, 2026
ZDI-26-434 ZDI-CAN-29046

CVE ID

CVE-2026-13306

CVSS Score

4.3 AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected Vendors

Autel

Affected Products

MaxiCharger AC Elite Home

Vulnerability Details

This vulnerability allows physically present attackers to bypass authentication on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the exposed USB interface. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system.

Additional Details

Fixed in firmware version V1.40.81


Disclosure Timeline

  • 2026-03-19 - Vulnerability reported to vendor
  • 2026-07-15 - Coordinated public release of advisory
  • 2026-07-15 - Advisory Updated

Credit

Tobias Scharnowski (@ScepticCtf), Felix Buchmann, and Kristian Covic of Fuzzware.io

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