VulnerabilityAwaiting Analysis

CVE-2026-13308

Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability.

HIGH 8.1EPSS 0.57%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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: 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.57% probability · 45th percentile
CISA KEV: Not listed
Weakness: CWE-191
Source: zdi-disclosures@trendmicro.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.