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FKIE_CVE-2021-23909

Vulnerability from fkie_nvd - Published: 2021-05-13 19:15 - Updated: 2026-06-17 03:39
Severity
6.3 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
cve@mitre.orghttps://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/Third Party Advisory
cve@mitre.orghttps://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdfExploit, Third Party Advisory
cve@mitre.orghttps://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdfExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866Third Party Advisory
Impacted products
Vendor Product Version
mercedes-benz hermes 2.1
mercedes-benz a_220 -
mercedes-benz a_220_4matic -
mercedes-benz e_350 -
mercedes-benz e_350_4matic -
mercedes-benz eqc -
mercedes-benz gle_350 -
mercedes-benz gle_350_4matic -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mercedes-benz:hermes:2.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE40EAC0-6856-445B-933F-8B565988151E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
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              "matchCriteriaId": "00C6FB3F-99E8-4F72-8B40-93AB5244D3A3",
              "vulnerable": false
            },
            {
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              "matchCriteriaId": "6AE91DA7-054C-43D0-9E4D-6385375A5739",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:mercedes-benz:e_350:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "D7F9C8E2-57A0-4D2D-8211-33104006B92B",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:mercedes-benz:e_350_4matic:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "8EC39015-8D7D-4B64-9EBF-C51576DC97A9",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:mercedes-benz:eqc:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "435101DE-3319-4633-8FCC-03CC247F091D",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:mercedes-benz:gle_350:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "12F309D8-C0F6-46A3-9B9E-B3C62EAF0230",
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            },
            {
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              "matchCriteriaId": "53E65192-1977-44E6-AF77-370CAB4AC3BB",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en HERMES versi\u00f3n 2.1 en el sistema de infoentretenimiento MBUX de los veh\u00edculos Mercedes-Benz hasta 2021. La MCU SH2 permite la ejecuci\u00f3n remota de c\u00f3digo"
    }
  ],
  "id": "CVE-2021-23909",
  "lastModified": "2026-06-17T03:39:01.027",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.5,
        "source": "cve@mitre.org",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-05-13T19:15:07.870",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdf"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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