CVE-2023-34406

User-Data service restart via USB integer overflow

Published Feb 13, 2025 · Updated Mar 17, 2025

Integer overflow in Mercedes-Benz NTG 6 head units allows physically proximate attackers to restart the User-Data service via USB. The user data import/export function performs overflowing integer arithmetic on prepared USB data; public sources do not identify the specific field or operation. Physical access and user interaction are required, and the service restarts automatically after the temporary failure.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Mercedes-Benz NTG 6 head units allows physically proximate attackers to restart the User-Data service via USB. The user data import/export function performs overflowing integer arithmetic on prepared USB data; public sources do not identify the specific field or operation. Physical access and user interaction are required, and the service restarts automatically after the temporary failure.

The record

CVE
CVE-2023-34406
Published
Feb 13, 2025
Updated
Mar 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, CAPEC-92
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
5.5KasperskyCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
CAPEC-92Forced Integer Overflow

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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