CVE-2020-5665 (GCVE-0-2020-5665)

Vulnerability from cvelistv5 – Published: 2020-12-14 02:25 – Updated: 2024-08-04 08:39
VLAI
Summary
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.
Severity
7.4 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
  • Denial-of-service (DoS)
Assigner
References
Impacted products
Vendor Product Version CPE status
Mitsubishi Electric Corporation MELSEC iQ-F series FX5U(C) CPU unit Affected: firmware version 1.060 and earlier
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:39:25.489Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jvn.jp/vu/JVNVU95638588/index.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "MELSEC iQ-F series FX5U(C) CPU unit",
          "vendor": "Mitsubishi Electric Corporation",
          "versions": [
            {
              "status": "affected",
              "version": "firmware version 1.060 and earlier"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Denial-of-service (DoS)",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-14T02:25:53.000Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jvn.jp/vu/JVNVU95638588/index.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2020-5665",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "MELSEC iQ-F series FX5U(C) CPU unit",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "firmware version 1.060 and earlier"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Mitsubishi Electric Corporation"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial-of-service (DoS)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01",
              "refsource": "MISC",
              "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01"
            },
            {
              "name": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf",
              "refsource": "MISC",
              "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf"
            },
            {
              "name": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf",
              "refsource": "MISC",
              "url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf"
            },
            {
              "name": "https://jvn.jp/vu/JVNVU95638588/index.html",
              "refsource": "MISC",
              "url": "https://jvn.jp/vu/JVNVU95638588/index.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2020-5665",
    "datePublished": "2020-12-14T02:25:53.000Z",
    "dateReserved": "2020-01-06T00:00:00.000Z",
    "dateUpdated": "2024-08-04T08:39:25.489Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-5665",
      "date": "2026-09-24",
      "epss": "0.01028",
      "percentile": "0.62099"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:mitsubishielectric:melsec_iq-f_fx5u_cpu_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6A8F2FC3-2AB0-495D-BD49-1BAD229D4602",
                    "versionEndIncluding": "1.060",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:mitsubishielectric:melsec_iq-f_fx5u_cpu:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DE9A97E7-29E3-4F27-9203-CF51CD90A1B4",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          }
        ],
        "cveTags": [],
        "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."
          }
        ],
        "id": "CVE-2020-5665",
        "lastModified": "2024-11-21T05:34:26.877",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "ADJACENT_NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 3.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 6.5,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.4,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 4.0,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2020-12-14T03:15:13.653",
        "references": [
          {
            "source": "vultures@jpcert.or.jp",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://jvn.jp/vu/JVNVU95638588/index.html"
          },
          {
            "source": "vultures@jpcert.or.jp",
            "tags": [
              "Third Party Advisory",
              "US Government Resource"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01"
          },
          {
            "source": "vultures@jpcert.or.jp",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf"
          },
          {
            "source": "vultures@jpcert.or.jp",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://jvn.jp/vu/JVNVU95638588/index.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "US Government Resource"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf"
          }
        ],
        "sourceIdentifier": "vultures@jpcert.or.jp",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-05-22T16:43:12+00:00",
      "cve": "CVE-2020-5665",
      "id": "CVE-2020-5665",
      "initial_release_date": "2020-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2020-5665",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-5665.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.