CVE-2024-23957 Memory corruption in MaxiCharger AC Elite Business C50
Network-adjacent attackers can execute arbitrary code on Autel MaxiCharger AC Elite Business C50 stations via a stack-based buffer overflow in the DLB protocol handler.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-23957?
CVE-2024-23957 is a high-severity memory corruption vulnerability in Autel MaxiCharger AC Elite Business C50, published on 28 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Autel MaxiCharger AC Elite Business C50 DLB_HostHeartBeat Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Business C50 charging stations. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the DLB_HostHeartBeat handler of the DLB protocol implementation. When parsing an AES key, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device.
Was ZDI-CAN-23241
Which versions are affected by CVE-2024-23957?
It affects 1 product.
Products include Autel Maxicharger Ac Elite Business C50 Firmware.
How do I fix CVE-2024-23957?
No fix has been published for CVE-2024-23957 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-23957 being exploited?
There is no known exploitation of CVE-2024-23957 in the wild and no public exploit code.
Other vulnerabilities in Autel MaxiCharger AC Elite Business C50
- CVE-2025-5827 Memory corruption in Autel MaxiCharger AC Wallbox Commercial
- CVE-2025-5830 Memory corruption in Autel MaxiCharger AC Wallbox Commercial
- CVE-2024-7795 Memory corruption in MaxiCharger AC Elite Business C50
- CVE-2024-23959 Memory corruption in MaxiCharger AC Elite Business C50
- CVE-2024-23967 Memory corruption in MaxiCharger AC Elite Business C50
Sources
Also known as GHSA-c7j9-vm5x-xj32.