Is CVE-2023-34399 in the CISA KEV catalog?

No. CVE-2023-34399 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-34399?

CVE-2023-34399 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-34399?

CVE-2023-34399 has an EPSS score of 0.69% (48th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2023-34399

CRITICAL

9.8

CVSS v3

NVD

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 version of boost library contains vulnerability integer overflow.

CWE-190Integer Overflow

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.69%probability of exploitation in 30 days

48thpercentile

Moderate risk: more likely to be exploited than 48% of all known CVEs.

References

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

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-27.