CVE-2025-5827: maxicharger dh480 Stack Overflow (CVSS 8.8)

Description

Autel MaxiCharger AC Wallbox Commercial ble_process_esp32_msg 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 Wallbox Commercial EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ble_process_esp32_msg function. The issue results from the lack of proper validation of 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-26369.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
autel	maxicharger_ac_elite_business_c50_firmware	< 1.39.51
autel	maxicharger_ac_elite_business_c50_firmware	< 1.56.51
autel	maxicharger_ac_elite_business_c50	All
autel	maxicharger_ac_pro_firmware	< 1.39.51
autel	maxicharger_ac_pro_firmware	< 1.56.51
autel	maxicharger_ac_pro	All
autel	maxicharger_ac_ultra_firmware	< 1.39.51
autel	maxicharger_ac_ultra_firmware	< 1.56.51
autel	maxicharger_ac_ultra	All
autel	maxicharger_dc_compact_mobile_firmware	< 1.39.51
autel	maxicharger_dc_compact_mobile_firmware	< 1.56.51
autel	maxicharger_dc_compact_mobile	All
autel	maxicharger_dc_compact_pedestal_firmware	< 1.39.51
autel	maxicharger_dc_compact_pedestal_firmware	< 1.56.51
autel	maxicharger_dc_compact_pedestal	All
autel	maxicharger_dc_fast_firmware	< 1.39.51
autel	maxicharger_dc_fast_firmware	< 1.56.51
autel	maxicharger_dc_fast	All
autel	maxicharger_dc_hipower_firmware	< 1.39.51
autel	maxicharger_dc_hipower_firmware	< 1.56.51
autel	maxicharger_dc_hipower	All
autel	maxicharger_dh480_firmware	< 1.39.51
autel	maxicharger_dh480_firmware	< 1.56.51
autel	maxicharger_dh480	All
autel	maxicharger_single_charger_firmware	< 1.39.51
autel	maxicharger_single_charger_firmware	< 1.56.51
autel	maxicharger_single_charger	All

References

Other References

https://www.zerodayinitiative.com/advisories/ZDI-25-346/

Frequently Asked Questions

What is CVE-2025-5827? +

Autel MaxiCharger AC Wallbox Commercial ble_process_esp32_msg 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 Wallbox Commercial EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ble_process_esp32_msg function. The issue results from the lack of proper validation of 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-26369. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-5827? +

CVE-2025-5827 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-5827? +

CVE-2025-5827 affects products from autel, specifically: maxicharger_ac_elite_business_c50, maxicharger_ac_elite_business_c50_firmware, maxicharger_ac_pro, maxicharger_ac_pro_firmware, maxicharger_ac_ultra, maxicharger_ac_ultra_firmware, maxicharger_dc_compact_mobile, maxicharger_dc_compact_mobile_firmware, maxicharger_dc_compact_pedestal, maxicharger_dc_compact_pedestal_firmware, maxicharger_dc_fast, maxicharger_dc_fast_firmware, maxicharger_dc_hipower, maxicharger_dc_hipower_firmware, maxicharger_dh480, maxicharger_dh480_firmware, maxicharger_single_charger, maxicharger_single_charger_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-5827? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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