CVE-2025-5830
Description
Autel MaxiCharger AC Wallbox Commercial DLB_SlaveRegister Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Wallbox Commercial EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of DLB_SlaveRegister messages. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-26327.
How to fix
- autel maxicharger_ac_elite_business_c50_firmware1.39.51, 1.56.51 or later
- autel maxicharger_ac_pro_firmware1.39.51, 1.56.51 or later
- autel maxicharger_ac_ultra_firmware1.39.51, 1.56.51 or later
- autel maxicharger_dc_compact_mobile_firmware1.39.51, 1.56.51 or later
- autel maxicharger_dc_compact_pedestal_firmware1.39.51, 1.56.51 or later
- autel maxicharger_dc_fast_firmware1.39.51, 1.56.51 or later
- autel maxicharger_dc_hipower_firmware1.39.51, 1.56.51 or later
- autel maxicharger_dh480_firmware1.39.51, 1.56.51 or later
- autel maxicharger_single_charger_firmware1.39.51, 1.56.51 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| autel maxicharger_ac_elite_business_c50_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
| autel maxicharger_ac_pro_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
| autel maxicharger_ac_ultra_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
| autel maxicharger_dc_compact_mobile_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
| autel maxicharger_dc_compact_pedestal_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
| autel maxicharger_dc_fast_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
| autel maxicharger_dc_hipower_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
| autel maxicharger_dh480_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
| autel maxicharger_single_charger_firmware | v < 1.39.51, v < 1.56.51 | 1.39.51, 1.56.51 |
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