Input validation error in MBUX Infotainment System - CVE-2021-23907
Published: May 20, 2021
Vulnerability identifier: #VU53385
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-23907
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mercedes-Benz
Affected software:
MBUX Infotainment System
MBUX Infotainment System
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists in the Headunit NTG6 on Mercedes-Benz vehicles due to the count in MultiSvGet, GetAttributes and MultiSvSet is not checked in the HiQnet Protocol. A remote attacker can pass specially crafted input and execute arbitrary code on the target system.
How to mitigate CVE-2021-23907
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.