Integer underflow in MaxiCharger AC Elite Home - CVE-2026-13308
Published: July 22, 2026
Vulnerability identifier: #VU139096
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-13308
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer underflow within the handling of WebSocket messages related to the OCPP service. A remote attacker can trigger integer underflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
MaxiCharger AC Elite Home
How to mitigate CVE-2026-13308
Install updates from vendor's website.
MaxiCharger AC Elite Home - update to 1.40.81