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CVE-2025-5829

Autel MaxiCharger AC Wallbox Commercial autocharge Stack-based Buffer Overflow Remote Code Execution Vulnerability

MEDIUM
6.8
CVSS Score
Published: June 25, 2025 at 06:01 PM UTC
Updated: June 17, 2026 at 09:48 AM UTC
19 products affected across 1 vendorMaxicharger Single Charger FirmwareMaxicharger Ac Elite Business C50 FirmwareMaxicharger Ac Pro Firmware

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Autel MaxiCharger AC Wallbox Commercial autocharge Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected 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 JSON 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 stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-26330.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Maxicharger Ac Elite Business C50 Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
Maxicharger Ac Pro Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
autel-maxicharger-ac-pro (same device)
Maxicharger Ac Ultra Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
autel-maxicharger-ac-ultra (same device)
Maxicharger Dc Compact Mobile Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
autel-maxicharger-dc-compact-mobile (same device)
Maxicharger Dc Compact Pedestal Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
autel-maxicharger-dc-compact-pedestal (same device)
Maxicharger Dc Fast Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
autel-maxicharger-dc-fast (same device)
Maxicharger Dc Hipower Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
autel-maxicharger-dc-hipower (same device)
Maxicharger DH480 Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
autel-maxicharger-dh480 (same device)
Maxicharger Single Charger Firmware· Autel
95%
v < 1.39.51v < 1.56.51
Affected range stops below 1.39.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.56.51, so it looks safe — our inference, not a vendor statement
autel-maxicharger-single-charger (same device)
MaxiCharger AC Wallbox Commercial· Autel
60%
1.36.00

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_research-advisoryThird Party Advisory
Source: [email protected]
https://www.zerodayinitiative.com/advisories/ZDI-25-348/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMzdi
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121

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