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CVE-2020-37216

Estado: Pendiente de análisisAlta (8.7)—

Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01 contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a length value larger than the actual packet size to render the device inoperable.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vector AV:N/PR:N/UI:N indica red sin privilegios. CWE-20 + descripción explícita de crash/hang por paquetes UDP malformados = DoS de disponibilidad (T1499.004 por protocolo de red).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-37216",
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          "id": "CVE-2020-37216",
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          "options": [
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              "exploitation": "none"
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              "technicalImpact": "partial"
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
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          "valueDensity": "NOT_DEFINED",
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          "vulnIntegrityImpact": "NONE",
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          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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  "affected": [
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      "affectedData": [
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          "vendor": "Belden",
          "product": "Hirschmann HiOS",
          "versions": [
            {
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              "version": ">= 08.1.00",
              "versionType": "custom"
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  "published": "2026-04-03T21:17:08.213",
  "references": [
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      "url": "https://assets.belden.com/m/3d3e2cbfa4860258/original/Belden-Security-Bulletin-BSECV-2019-14.pdf",
      "source": "disclosure@vulncheck.com"
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      "lang": "en",
      "value": "Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01  contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a length value larger than the actual packet size to render the device inoperable."
    },
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    }
  ],
  "lastModified": "2026-07-24T22:10:00.140",
  "sourceIdentifier": "disclosure@vulncheck.com"
}