Maxicharger Ac Elite Business C50 FirmwareOperating system · Autel

CVE-2024-23959

HIGH · 8.0 CVSS v3.1 Published 2024-09-28
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
82/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Autel MaxiCharger AC Elite Business C50 BLE AppChargingControl 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 Elite Business C50 charging stations. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of the AppChargingControl BLE command. 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-23194

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Stack-based buffer overflow in the BLE AppChargingControl command handler of Autel MaxiCharger AC Elite Business C50. The vulnerability stems from insufficient length validation before copying user-supplied data into a fixed-size stack buffer, enabling remote code execution in the device context. Authentication is required but can be bypassed.

MitigationApply vendor firmware patch when available; in the interim, restrict BLE device pairing to trusted devices only and implement network segmentation to limit exposure to adjacent attackers.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Maxicharger Ac Elite Business C50 FirmwareOperating system
Affected:= 1.32.00

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the device model
    Inspect the physical device or check the device management interface for the model name, confirming it is an Autel MaxiCharger AC Elite Business C50
    Affected if The device is not an Autel MaxiCharger AC Elite Business C50, then it is not affected by this specific CVE
  2. Check the installed firmware version
    Access the device admin interface or use the Autel mobile app to view the firmware version information
    Affected if The firmware version is exactly 1.32.00, then the device is running the affected version
  3. Verify BLE is enabled
    Check the device BLE settings through the mobile app or web interface to determine if Bluetooth Low Energy is turned on
    Affected if BLE is disabled, the attack surface is significantly reduced though the vulnerability still exists in the firmware code
  4. Confirm AppChargingControl feature is exposed
    Attempt to enumerate BLE services or check if the charging control functionality is accessible via BLE commands
    Affected if The AppChargingControl command handler is accessible via BLE, the exploit condition is present

The environment is affected only if the device is an Autel MaxiCharger AC Elite Business C50 running firmware version 1.32.00 with BLE enabled and the AppChargingControl feature exposed.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor firmware patch when available; in the interim, restrict BLE device pairing to trusted devices only and implement network segmentation to limit exposure to adjacent attackers.

Fix this in Maxicharger Ac Elite Business C50 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
16.0 hours of engineering $2,840
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-23959 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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