{
  "id": "CVE-2020-5665",
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "published": "2020-12-14T03:15:13.653",
  "lastModified": "2021-07-21T11:39:23.747",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) CPU unit firmware version 1.060 and earlier allows an attacker to cause a denial-of-service (DoS) condition on program execution and communication by sending a specially crafted ARP packet."
    },
    {
      "lang": "es",
      "value": "Una comprobaci\u00f3n o manejo inapropiado de condiciones excepcionales en la unidad CPU FX5U(C) de MELSEC iQ-F series versi\u00f3n 1.060 y anterior, permite a un atacante causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en una ejecuci\u00f3n del programa y la comunicaci\u00f3n mediante el env\u00edo de un paquete ARP especialmente dise\u00f1ado."
    }
  ],
  "metrics": {
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      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.0
      }
    ],
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "ADJACENT_NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 3.3
        },
        "baseSeverity": "LOW",
        "exploitabilityScore": 6.5,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
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  "references": [
    {
      "url": "https://jvn.jp/vu/JVNVU95638588/index.html",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01",
      "source": "vultures@jpcert.or.jp",
      "tags": [
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        "US Government Resource"
      ]
    },
    {
      "url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Vendor Advisory"
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    },
    {
      "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf",
      "source": "vultures@jpcert.or.jp",
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}