ZDI-26-433: (Pwn2Own) Autel MaxiCharger AC Elite Home Software Update Improper Verification of Cryptographic Signature Arbitrary Code Execution Vulnerability
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.
Other sources
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 ZDI has assigned a CVSS rating of 6.4. The following CVEs are assigned: CVE-2026-13305.
— ZDI
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch ZDI-26-433
Event History
Frequently Asked Questions
What is the severity of ZDI-26-433?
ZDI-26-433 has a CVSS rating of 6.4, indicating moderate severity.
How do I fix ZDI-26-433?
To mitigate ZDI-26-433, ensure software updates are verified through secure mechanisms to prevent arbitrary code execution.
What impacts does ZDI-26-433 have on Autel MaxiCharger AC Elite Home users?
Users of the Autel MaxiCharger AC Elite Home are at risk of unauthorized code execution if the vulnerability is exploited.
Can ZDI-26-433 be exploited remotely?
No, ZDI-26-433 requires physical presence for exploitation to perform arbitrary code execution.
What should I do if I suspect exploitation of ZDI-26-433?
If you suspect ZDI-26-433 exploitation, disconnect the device from power and consult with a cybersecurity professional.