ZDI-25-346: (Pwn2Own) Autel MaxiCharger AC Wallbox Commercial ble_process_esp32_msg Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Wallbox Commercial EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the bleprocessesp32msg function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Wallbox Commercial EV chargers. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2025-5827.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-346?
The severity of ZDI-25-346 is critical due to the potential for arbitrary code execution by unauthenticated network-adjacent attackers.
How do I fix ZDI-25-346?
To mitigate ZDI-25-346, ensure that the affected Autel MaxiCharger AC Wallbox Commercial firmware is updated to the latest version provided by the vendor.
What type of attack does ZDI-25-346 facilitate?
ZDI-25-346 facilitates remote code execution attacks due to flaws in the communication processing within the charger.
Who is affected by ZDI-25-346?
Any installations of the Autel MaxiCharger AC Wallbox Commercial EV chargers are vulnerable to ZDI-25-346.
Is authentication required to exploit ZDI-25-346?
No, authentication is not required to exploit ZDI-25-346, making it particularly concerning for security.