CVE-2021-23909
CRITICALCVSS 9.8/10EPSS 2.36%
Last modified
CVE-2021-23909 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in HERMES 2.1 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The SH2 MCU allows remote code execution.. EPSS estimates a 2.36% chance of exploitation in the next 30 days.
Description
An issue was discovered in HERMES 2.1 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The SH2 MCU allows remote code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mercedes-Benz | Hermes | 2.1 |
References
- https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdfExploit, Third Party Advisory
- https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866Third Party Advisory
- https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdfExploit, Third Party Advisory
- https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-23909?
An issue was discovered in HERMES 2.1 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The SH2 MCU allows remote code execution.
How severe is CVE-2021-23909?
CVE-2021-23909 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.36% probability of exploitation in the next 30 days.
How do I fix CVE-2021-23909?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-23909?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST