CVE-2025-5822: Autel MaxiCharger AC Wallbox Commercial Technician API Incorrect Authorization Privilege Escalation Vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-06-25 · updated 2026-06-17
Weakness: CWE-863

Description

Autel MaxiCharger AC Wallbox Commercial Technician API Incorrect Authorization Privilege Escalation Vulnerability. This vulnerability allows remote attackers to escalate privileges on affected installations of Autel MaxiCharger AC Wallbox Commercial charging stations. An attacker must first obtain a low-privileged authorization token in order to exploit this vulnerability. The specific flaw exists within the implementation of the Autel Technician API. The issue results from incorrect authorization. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the user. Was ZDI-CAN-26325.

Affected products

Autel MaxiCharger AC Elite Business C50: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51
Autel Maxicharger Ac Pro Firmware: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51
Autel Maxicharger Ac Ultra Firmware: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51
Autel Maxicharger Dc Compact Mobile Firmware: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51
Autel Maxicharger Dc Compact Pedestal Firmware: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51
Autel Maxicharger Dc Fast Firmware: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51
Autel Maxicharger Dc Hipower Firmware: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51
Autel Maxicharger Dh480 Firmware: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51
Autel MaxiCharger Single: before 1.39.51; before 1.56.51 — fixed in 1.39.51, 1.56.51

How to fix

Upgrade to a fixed version: Autel MaxiCharger AC Elite Business C50 1.39.51, 1.56.51; Autel Maxicharger Ac Pro Firmware 1.39.51, 1.56.51; Autel Maxicharger Ac Ultra Firmware 1.39.51, 1.56.51; Autel Maxicharger Dc Compact Mobile Firmware 1.39.51, 1.56.51; Autel Maxicharger Dc Compact Pedestal Firmware 1.39.51, 1.56.51; Autel Maxicharger Dc Fast Firmware 1.39.51, 1.56.51; Autel Maxicharger Dc Hipower Firmware 1.39.51, 1.56.51; Autel Maxicharger Dh480 Firmware 1.39.51, 1.56.51; Autel MaxiCharger Single 1.39.51, 1.56.51. Check the vendor advisory for mitigations.

References

https://www.zerodayinitiative.com/advisories/ZDI-25-340/

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