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Fencer Vulns
high 8.8

CVE-2025-5830 json

Autel MaxiCharger AC Wallbox Commercial DLB_SlaveRegister Heap-based Buffer Overflow Remote Code Execution Vulnerability

published 2025-06-25 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-28672

cvss
8.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

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.

Patch / fix

  • autel maxicharger_ac_elite_business_c50_firmware 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_charger_firmware 1.39.51, 1.56.51

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
16 mo ago

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 8.8 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Autel Autel MaxiCharger AC Wallbox Commercial

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.