How severe is CVE-2023-34401?

CVE-2023-34401 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-34401 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34401?

CVE-2023-34401 affects Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34401?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-34401 have an EU (EUVD) identifier?

Yes. CVE-2023-34401 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-38479.

When was CVE-2023-34401 published?

CVE-2023-34401 was published on 2025-02-13 and last updated on 2026-06-17.

CVE-2023-34401

CVE-2023-34401 is a low-severity vulnerability in Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-38479
Weakness: CWE-125
Affected product: Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience
Published: 2025-02-13
Last modified: 2026-06-17

Description

Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Inside profile folder there is a file, which is encoded with proprietary UD2 codec. Due to missed size checks in the enapsulate file, attacker can achieve Out-of-Bound Read in heap memory.

Frequently asked questions

What is CVE-2023-34401?: Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Inside profile folder there is a file, which is encoded with proprietary UD2 codec. Due to missed size checks in the enapsulate file, attacker can achieve Out-of-Bound Read in heap memory.
How severe is CVE-2023-34401?: CVE-2023-34401 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-34401 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34401?: CVE-2023-34401 affects Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34401?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-34401 have an EU (EUVD) identifier?: Yes. CVE-2023-34401 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-38479.
When was CVE-2023-34401 published?: CVE-2023-34401 was published on 2025-02-13 and last updated on 2026-06-17.

References

https://securelist.com/mercedes-benz-head-unit-security-research/115218/

Affected products (1)

cpe:2.3:a:mercedes-benz:headunit_ntg6_mercedes-benz_user_experience:*:*:*:*:*:*:*:*

More vulnerabilities in Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience

CVE-2023-34399 — Critical (CVSS 9.8): Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Some values of this…
CVE-2023-34402 — High (CVSS 7.7): Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Inside file is…
CVE-2023-34400 — High (CVSS 7.5): Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. In case of parsing file,…
CVE-2023-34398 — High (CVSS 7.5): Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Some values of this…
CVE-2023-34397 — High (CVSS 7.5): Mercedes Benz head-unit NTG 6 contains functions to import or export profile settings over USB. During parsing you can…
CVE-2024-37600 — Medium (CVSS 6.8): An issue was discovered in Mercedes Benz NTG (New Telematics Generation) 6 through 2021. A possible stack buffer…

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