CRITICAL
An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021
Published May 13, 2021
9.8
CRITICALCVSS 3.1
EPSS 2.36%
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 to remote code execution.
Affected products
No data.
AND
- 2021
Running on/with
OR
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (MITRE) ▾
2.9 LOW MITRE
CVSS:3.1/AC:H/AV:P/A:N/C:L/I:L/PR:N/S:U/UI:R
Attack Complexity High
Attack Vector Physical
Availability Impact None
Confidentiality Impact Low
Integrity Impact Low
Privileges Required None
Scope Unchanged
User Interaction Required
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.36% 0.02362
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.02362
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (27 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.36% (0.02362) | 83.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.36% (0.02362) | 81.52th | v5 (v2026.06.15) |
| Mar 1, 2026 | 3.26% (0.03262) | 86.96th | v4 (v2025.03.14) |
| Nov 21, 2025 | 1.50% (0.01496) | 80.53th | v4 (v2025.03.14) |
| Nov 18, 2025 | 3.40% (0.03396) | 86.20th | v4 (v2025.03.14) |
| Jun 19, 2025 | 1.50% (0.01496) | 80.21th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.53% (0.02529) | 84.05th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.57% (0.03573) | 79.31th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.53% (0.02529) | 84.37th | v4 (v2025.03.14) |
| Jan 28, 2025 | 12.80% (0.12804) | 95.50th | v3 (v2023.03.01) |
| Dec 25, 2024 | 11.02% (0.11016) | 95.10th | v3 (v2023.03.01) |
| Dec 17, 2024 | 9.24% (0.09241) | 94.67th | v3 (v2023.03.01) |
| Dec 12, 2024 | 4.91% (0.04905) | 93.09th | v3 (v2023.03.01) |
| Jul 14, 2024 | 4.10% (0.04104) | 92.26th | v3 (v2023.03.01) |
| Apr 18, 2024 | 2.94% (0.02938) | 90.70th | v3 (v2023.03.01) |
| Jan 27, 2024 | 2.79% (0.02787) | 89.60th | v3 (v2023.03.01) |
| Dec 18, 2023 | 2.61% (0.02612) | 89.19th | v3 (v2023.03.01) |
| Oct 26, 2023 | 2.23% (0.02228) | 88.28th | v3 (v2023.03.01) |
| Sep 3, 2023 | 2.15% (0.02152) | 87.90th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.68% (0.01675) | 85.68th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.63% (0.05634) | 90.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.63% (0.05634) | 89.29th | v2 (v2022.01.01) |
| Feb 4, 2022 | 46.46% (0.46456) | 97.91th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.71% (0.07710) | 84.59th | v1 |
| Jan 6, 2022 | 7.71% (0.07710) | 84.41th | v1 |
| Jan 5, 2022 | 1.83% (0.01828) | 75.84th | v5 (v2026.06.15) |
| May 14, 2021 | 1.83% (0.01828) | 0.00th | v1 |
Weaknesses (1)
References (3)
- https://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/ x_refsource_MISCThird Party Advisory
- https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdf x_refsource_MISCExploitThird Party Advisory
- https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866 x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/ | x_refsource_MISCThird Party Advisory | |
| https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdf | x_refsource_MISCExploitThird Party Advisory | |
| https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866 | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 13, 2021
Updated Aug 3, 2024
Reserved Jan 12, 2021
Link CVE-2021-23908
CISA Vulnrichment
Updated n/a