(Pwn2Own) Autel MaxiCharger AC Elite Home Software Update Improper Verification of Cryptographic Signature Arbitrary Code Execution Vulnerability

July 15th, 2026
ZDI-26-433 ZDI-CAN-29062

CVE ID

CVE-2026-13305

CVSS Score

6.4 AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

Autel

Affected Products

MaxiCharger AC Elite Home

Vulnerability Details

This vulnerability allows physically present attackers to execute arbitrary code 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 handling of software updates. The issue results from the lack of proper validation of a user-supplied software update image. An attacker can leverage this vulnerability to execute code in the context of the device.

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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