How severe is CVE-2023-34398?

CVE-2023-34398 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-34398 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34398?

CVE-2023-34398 affects Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34398?

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-2023-34398 have an EU (EUVD) identifier?

Yes. CVE-2023-34398 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-38476.

When was CVE-2023-34398 published?

CVE-2023-34398 was published on 2025-02-13 and last updated on 2026-06-17.

CVE-2023-34398

CVE-2023-34398 is a high-severity vulnerability in Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-38476
Weakness: CWE-476
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. Some values of this table are serialized archive according boost library. The boost library contains a vulnerability/null pointer dereference.

Frequently asked questions

What is CVE-2023-34398?: Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Some values of this table are serialized archive according boost library. The boost library contains a vulnerability/null pointer dereference.
How severe is CVE-2023-34398?: CVE-2023-34398 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-34398 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34398?: CVE-2023-34398 affects Mercedes-benz Headunit Ntg6 Mercedes-benz User Experience. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34398?: 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-2023-34398 have an EU (EUVD) identifier?: Yes. CVE-2023-34398 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-38476.
When was CVE-2023-34398 published?: CVE-2023-34398 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…
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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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