01 Record
CVE-2021-23908
An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. A type confusion issue affects MultiSvSetAttributes in the HiQnet Protocol, leading
LowPUBLISHEDCNA: mitre
CNA base score2.9 CVSS v3.xCVSS:3.1/AC:H/AV:P/A:N/C:L/I:L/PR:N/S:U/UI:R
02 Description
An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. A type confusion issue affects MultiSvSetAttributes in the HiQnet Protocol, leading
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.36% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 83.3% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-05-13 18:57Z5 YR AGO
- Last updated
- 2024-08-03 19:14Z2 YR AGO
- Reserved
- 2021-01-12
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Low (CVSS 2.9)
- CNA CVSS vector
- CVSS:3.1/AC:H/AV:P/A:N/C:L/I:L/PR:N/S:U/UI:R
- Weaknesses
- CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base
- Data version
- 5.1
- Document digest
- 775c434400f4d9c5cc6e995674fc625305399cb5d29a587adbccae520c826440
05 Affected products
VendorProductVersionsPlatforms
06 References
- media.daimler.comhttps://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866
- keenlab.tencent.comhttps://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/
- keenlab.tencent.comhttps://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdf