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CVE-2026-13308: Autel MaxiCharger AC Elite Home: Unauthenticated Remote Code Execution

CVE-2026-13308 · published 3 months ago

Summary

A security flaw in Autel MaxiCharger AC Elite Home EV chargers allows hackers to run unauthorized code on the device without needing a password. This means that a malicious person could potentially take control of the charger. To protect your device, update to the latest software version as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
autel	maxicharger ac elite home	1.39.51

Original advisory text

Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote 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 WebSocket messages related to the OCPP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-29113.

References

https://www.zerodayinitiative.com/advisories/ZDI-26-437/ x_research-advisory

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker full control

Severity

8.1 High

Exploitation

<1% chance of attack within 30 days

Type

CWE-191Integer Underflow (Wrap or Wraparound)

Timeline

Published29 Jul 2026

Updated4 Nov 2026

First seen29 Jul 2026

Sources

CVE-2026-13308 · NVD

CVE-2026-13308 · MITRE

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