CVE-2024-23957

Adjacent unauthenticated code execution via AES-key overflow

Published Sep 28, 2024 · Updated Oct 3, 2024

Stack-based buffer overflow in Autel MaxiCharger AC Elite Business C50 1.32.00 allows remote attackers to execute code via an adjacent network. The DLB_HostHeartBeat handler parses an attacker-supplied AES key and copies it into a fixed-length stack buffer without validating its length. No authentication or user interaction is required, and successful exploitation runs code in the charging station's device context.

CVSS severity8.8
High
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Autel MaxiCharger AC Elite Business C50 1.32.00 allows remote attackers to execute code via an adjacent network. The DLB_HostHeartBeat handler parses an attacker-supplied AES key and copies it into a fixed-length stack buffer without validating its length. No authentication or user interaction is required, and successful exploitation runs code in the charging station's device context.

The record

CVE
CVE-2024-23957
Published
Sep 28, 2024
Updated
Oct 3, 2024
Vendor
Autel
Product
MaxiCharger AC Elite Business C50 EU Firmware
Classifications
CWE-787, CWE-121, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.50

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Autel · MaxiCharger AC Elite Business C50 EU Firmwareversion=0 <1.50
Autel · MaxiCharger AC Elite Business C50 Firmwareversion=0 <1.35
Autel · MaxiCharger AC Elite Business C50version=1.32.00

Published CVSS scores

8.8National Institute of Standards and TechnologyCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8Automotive Security Research GroupCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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