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CVE-2020-6656

Estado: ModificadaAlta (7.8)—

Eaton's easySoft software v7.xx prior to v7.22 are susceptible to file parsing type confusion remote code execution vulnerability. A malicious entity can execute a malicious code or make the application crash by tricking user upload a malformed .E70 file in the application. The vulnerability arises due to improper validation of user data supplied through E70 file which is causing Type Confusion.

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).

Tecnologías afectadas (1)

Eaton — Easysoft

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-6656",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "CybersecurityCOE@eaton.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.8,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4.7,
        "exploitabilityScore": 1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "CybersecurityCOE@eaton.com",
      "affectedData": [
        {
          "vendor": "Eaton",
          "product": "easySoft Software",
          "versions": [
            {
              "status": "affected",
              "version": "v7.xx prior to v7.22"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-01-07T18:15:14.027",
  "references": [
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-007-03",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "CybersecurityCOE@eaton.com"
    },
    {
      "url": "https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/easySoft-eaton-vulnerability-advisory.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "CybersecurityCOE@eaton.com"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1441/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "CybersecurityCOE@eaton.com"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1442/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "CybersecurityCOE@eaton.com"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1444/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "CybersecurityCOE@eaton.com"
    },
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-007-03",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/easySoft-eaton-vulnerability-advisory.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1441/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1442/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1444/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "CybersecurityCOE@eaton.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Eaton's easySoft software v7.xx prior to v7.22 are susceptible to file parsing type confusion remote code execution vulnerability. A malicious entity can execute a malicious code or make the application crash by tricking user upload a malformed .E70 file in the application. The vulnerability arises due to improper validation of user data supplied through E70 file which is causing Type Confusion."
    },
    {
      "lang": "es",
      "value": "El software easySoft de Eaton versiones v7.xx y anteriores a la v7.22 es susceptible a la vulnerabilidad de ejecución remota de código por confusión de tipo de archivo. Una entidad maliciosa puede ejecutar un código malicioso o hacer que la aplicación se bloquee engañando al usuario para que cargue un archivo .E70 malformado en la aplicación. La vulnerabilidad surge debido a la incorrecta validación de los datos del usuario suministrados a través del archivo E70, lo que provoca una confusión de tipos"
    }
  ],
  "lastModified": "2026-06-17T03:23:44.320",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:eaton:easysoft:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "440A35D5-73BF-45FE-8687-FBBB0FC2F960",
              "versionEndExcluding": "7.20",
              "versionStartIncluding": "7.00"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "CybersecurityCOE@eaton.com"
}