CVE-2026-13308
Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability
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.
INFO
Published Date :
July 29, 2026, 9:17 p.m.
Last Modified :
Oct. 24, 2026, 1:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-13308
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.0 | HIGH | 99f1926a-a320-47d8-bbb5-42feb611262e | ||||
| CVSS 3.0 | HIGH | [email protected] | ||||
| CVSS 3.0 | HIGH | MITRE-CVE |
Solution
- Apply firmware updates for Autel MaxiCharger devices.
- Validate user input in WebSocket message handling.
- Ensure proper integer and buffer handling.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-13308.
| URL | Resource |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-26-437/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-13308 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-13308
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-13308 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-13308 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Added Translation Title: MaxiCharger AC Elite Home de Autel, Description: Vulnerabilidad de ejecución remota de código por subdesbordamiento de enteros de WebSockets en Autel MaxiCharger AC Elite Home. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en instalaciones afectadas de cargadores de VE Autel MaxiCharger AC Elite Home. No se requiere autenticación para explotar esta vulnerabilidad. La falla específica reside en el manejo de mensajes de WebSocket relacionados con el servicio OCPP. El problema se debe a la falta de validación adecuada de los datos proporcionados por el usuario, lo que puede resultar en un subdesbordamiento de enteros antes de asignar un búfer. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del dispositivo. Fue ZDI-CAN-29113. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 30, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-13308', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-30T14:18:50.003364Z'} -
New CVE Received by [email protected]
Jul. 29, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Autel', 'product': 'MaxiCharger AC Elite Home', 'versions': [{'status': 'affected', 'version': '1.39.51'}], 'defaultStatus': 'unknown'}] Added 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. Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-191 Added Reference https://www.zerodayinitiative.com/advisories/ZDI-26-437/