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CVE-2020-27158

Estado: ModificadaCrítica (9.8)—

Addressed remote code execution vulnerability in cgi_api.php that allowed escalation of privileges in Western Digital My Cloud NAS devices prior to 5.04.114.

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)

Westerndigital — MY Cloud Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-27158",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-10-27T20:15:22.033",
  "references": [
    {
      "url": "https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.westerndigital.com/support/productsecurity",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.westerndigital.com/support/productsecurity",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Addressed remote code execution vulnerability in cgi_api.php that allowed escalation of privileges in Western Digital My Cloud NAS devices prior to 5.04.114."
    },
    {
      "lang": "es",
      "value": "Se abordó una vulnerabilidad de ejecución de código remota en el archivo cgi_api.php, que permitía una escalada de privilegios en dispositivos NAS de Western Digital My Cloud versiones anteriores a 5.04.114"
    }
  ],
  "lastModified": "2026-06-17T03:08:53.013",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:westerndigital:my_cloud_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1A91F2BA-EC12-4060-A0A5-9E4EB6238036",
              "versionEndExcluding": "5.04.114"
            }
          ],
          "operator": "OR"
        },
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          "negate": false,
          "cpeMatch": [
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            },
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              "criteria": "cpe:2.3:h:westerndigital:my_cloud_expert_series_ex2:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "A1351BC5-FF95-4041-8D4A-F6975AEE84A0"
            },
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              "vulnerable": false,
              "matchCriteriaId": "C70F1252-64C8-4174-9D61-957D1D52FE6B"
            },
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  "sourceIdentifier": "cve@mitre.org"
}