{"id":"CVE-2021-23907","aliases":["EUVD-2021-10830","GHSA-h34f-cf95-vh44"],"status":"published","title":"An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz...","description":"An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The count in MultiSvGet, GetAttributes, and MultiSvSet is not checked in the HiQnet Protocol, leading to remote code execution.","severity":{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AC:H/AV:P/A:N/C:L/I:L/PR:N/S:U/UI:R","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.02362,"percentile":0.83889,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-05-13T18:56:51Z","modified":"2026-06-17T03:39:00Z","products":[{"vendor":"mercedes-benz","product":"headunit_ntg6_mercedes-benz_user_experience"}],"references":[{"url":"https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdf","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23907"},{"url":"https://github.com/advisories/GHSA-h34f-cf95-vh44"}],"sources":{"cve":[{"id":"CVE-2021-23907","description":"An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The count in MultiSvGet, GetAttributes, and MultiSvSet is not checked in the HiQnet Protocol, leading to remote code execution.","status":"published","published":"2021-05-13T18:56:51Z","modified":"2024-08-03T19:14:09.387Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AC:H/AV:P/A:N/C:L/I:L/PR:N/S:U/UI:R","level":"low","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.488332Z"}],"euvd":[{"id":"EUVD-2021-10830","description":"An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The count in MultiSvGet, GetAttributes, and MultiSvSet is not checked in the HiQnet Protocol, leading to remote code execution.","status":"published","published":"2021-05-13T18:56:51Z","modified":"2024-08-03T19:14:09Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AC:H/AV:P/A:N/C:L/I:L/PR:N/S:U/UI:R","level":"low"}],"updated_at":"2026-11-03T03:25:00.126172Z"}],"ghsa":[{"id":"GHSA-h34f-cf95-vh44","title":"An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz...","description":"An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The count in MultiSvGet, GetAttributes, and MultiSvSet is not checked in the HiQnet Protocol, leading to remote code execution.","status":"published","published":"2022-05-24T19:02:18Z","modified":"2023-01-29T05:06:15Z","updated_at":"2026-11-02T14:45:59.056416Z"}],"nvd":[{"id":"CVE-2021-23907","description":"An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. The count in MultiSvGet, GetAttributes, and MultiSvSet is not checked in the HiQnet Protocol, leading to remote code execution.","status":"published","published":"2021-05-13T19:15:07.797Z","modified":"2026-06-17T03:39:00.767Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:06:53.343329Z"}]}}