FKIE_CVE-2019-17519

Vulnerability from fkie_nvd - Published: 2020-02-12 19:15 - Updated: 2026-06-17 02:24
Severity
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The Bluetooth Low Energy implementation on NXP SDK through 2.2.1 for KW41Z devices does not properly restrict the Link Layer payload length, allowing attackers in radio range to cause a buffer overflow via a crafted packet.
References
cve@mitre.orghttps://asset-group.github.io/disclosures/sweyntooth/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://asset-group.github.io/disclosures/sweyntooth/Exploit, Third Party Advisory
Impacted products
Vendor Product Version
nxp mcuxpresso_software_development_kit *
nxp kw31z -
nxp kw34 -
nxp kw35 -
nxp kw36 -
nxp kw37 -
nxp kw38 -
nxp kw39 -
nxp kw41z -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
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              "versionEndIncluding": "2.2.1",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Bluetooth Low Energy implementation on NXP SDK through 2.2.1 for KW41Z devices does not properly restrict the Link Layer payload length, allowing attackers in radio range to cause a buffer overflow via a crafted packet."
    },
    {
      "lang": "es",
      "value": "La implementaci\u00f3n de Bluetooth Low Energy en NXP SDK versiones hasta 2.2.1 para dispositivos KW41Z no restringe apropiadamente la longitud de la carga \u00fatil de Link Layer, lo que permite a atacantes dentro del radio de alcance causar un desbordamiento del b\u00fafer por medio de un paquete dise\u00f1ado."
    }
  ],
  "id": "CVE-2019-17519",
  "lastModified": "2026-06-17T02:24:03.210",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 6.5,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2020-02-12T19:15:14.047",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
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        "Third Party Advisory"
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      "url": "https://asset-group.github.io/disclosures/sweyntooth/"
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  "vulnStatus": "Modified",
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        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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