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Vulnerability record · CVE-2026-13308 · published 29 July 2026

CVE-2026-13308: Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability.

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.

8.1 CVSS 3.0 High EPSS 0.78% · top 45.9% CWE-191 · CWE-191 Awaiting Analysis
8.1CVSS 3.0 base score
0.78%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
30 Jul 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-13308), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.