Improper input validation in Mercedes-benz A_220

CVE-2021-23906

An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. A Message Length is not checked in the HiQnet Protocol, leading to remote code execution.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.008 (52.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 1.8 (Low). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-23906?
CVE-2021-23906 is a low-severity vulnerability in Mercedes-benz A_220, classified under Improper Input Validation. CVSS score: 1.8/10. Published 2021-05-13.
How severe is CVE-2021-23906?
Low severity. CVSS v3 base score is 1.8 out of 10.