How severe is CVE-2023-34402?

CVE-2023-34402 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2023-34402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34402?

CVE-2023-34402 affects Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34402?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-34402 have an EU (EUVD) identifier?

Yes. CVE-2023-34402 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-38480.

When was CVE-2023-34402 published?

CVE-2023-34402 was published on 2025-02-13 and last updated on 2026-06-17.

CVE-2023-34402

CVE-2023-34402 is a high-severity vulnerability in Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience with a CVSS 3.x base score of 7.7. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-38480
Weakness: CWE-787
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 file is encapsulate another file, which service will drop during processing. Due to missed checks, attacker can achieve Arbitrary File Write with service speech rights.

Frequently asked questions

What is CVE-2023-34402?: Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Inside file is encapsulate another file, which service will drop during processing. Due to missed checks, attacker can achieve Arbitrary File Write with service speech rights.
How severe is CVE-2023-34402?: CVE-2023-34402 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2023-34402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34402?: CVE-2023-34402 affects Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34402?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-34402 have an EU (EUVD) identifier?: Yes. CVE-2023-34402 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-38480.
When was CVE-2023-34402 published?: CVE-2023-34402 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-2023-34400 — 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…
CVE-2023-34404 — Medium (CVSS 4.9): Mercedes-Benz head-unit NTG6 has Ethernet pins on Base Board to connect module CSB. Attacker can connect to these pins…

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