CVE-2021-40342

Estado: ModificadaCrítica (9.8)—

In the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions.

This issue affects

Detalles técnicos trazas, registros y código del informe original

  *  FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C; 
  *  UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C.

List of CPEs: 
  *  cpe:2.3:a:hitachienergy:foxman-un:R16A:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:foxman-un:R15B:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:foxman-un:R15A:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:foxman-un:R14B:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:foxman-un:R14A:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:foxman-un:R11B:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:foxman-un:R11A:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:foxman-un:R10C:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:foxman-un:R9C:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R16A:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R15B:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R15A:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R14B:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R14A:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R11B:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R11A:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R10C:*:*:*:*:*:*:*
  *  cpe:2.3:a:hitachienergy:unem:R9C:*:*:*:*:*:*:*

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.28%
Percentil entre todas las CVEs puntuadas: 19
Fecha de la puntuación: 6/10/2026

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 (2)

Hitachienergy — Foxman-un Hitachienergy — Unem

CWE

CWE-798
CWE-287

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2021-40342",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-40342",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-10T14:07:13.855207Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.5
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "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": "cybersecurity@hitachienergy.com",
      "affectedData": [
        {
          "vendor": "Hitachi Energy",
          "product": "FOXMAN-UN",
          "versions": [
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              "status": "affected",
              "version": "FOXMAN-UN R16A"
            },
            {
              "status": "affected",
              "version": "FOXMAN-UN R15B"
            },
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              "status": "affected",
              "version": "FOXMAN-UN R15A"
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            {
              "status": "affected",
              "version": "FOXMAN-UN R14B"
            },
            {
              "status": "affected",
              "version": "FOXMAN-UN R14A"
            },
            {
              "status": "affected",
              "version": "FOXMAN-UN R11B"
            },
            {
              "status": "affected",
              "version": "FOXMAN-UN R11A"
            },
            {
              "status": "affected",
              "version": "FOXMAN-UN R10C"
            },
            {
              "status": "affected",
              "version": "FOXMAN-UN R9C"
            }
          ],
          "defaultStatus": "unaffected"
        },
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          "vendor": "Hitachi Energy",
          "product": "UNEM",
          "versions": [
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              "status": "affected",
              "version": "UNEM R16A"
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              "version": "UNEM R15B"
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            {
              "status": "affected",
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            {
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              "version": "UNEM R14B"
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            {
              "status": "affected",
              "version": "UNEM R14A"
            },
            {
              "status": "affected",
              "version": "UNEM R11B"
            },
            {
              "status": "affected",
              "version": "UNEM R11A"
            },
            {
              "status": "affected",
              "version": "UNEM R10C"
            },
            {
              "status": "affected",
              "version": "UNEM R9C"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2023-01-05T22:15:08.953",
  "references": [
    {
      "url": "https://search.abb.com/library/Download.aspx?DocumentID=8DBD000083&LanguageCode=en&DocumentPartId=&Action=Launch",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
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      "source": "cybersecurity@hitachienergy.com"
    },
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      "url": "https://search.abb.com/library/Download.aspx?DocumentID=8DBD000084&LanguageCode=en&DocumentPartId=&Action=Launch",
      "tags": [
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      "source": "cybersecurity@hitachienergy.com"
    },
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      "url": "https://search.abb.com/library/Download.aspx?DocumentID=8DBD000083&LanguageCode=en&DocumentPartId=&Action=Launch",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://search.abb.com/library/Download.aspx?DocumentID=8DBD000084&LanguageCode=en&DocumentPartId=&Action=Launch",
      "tags": [
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cybersecurity@hitachienergy.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
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    },
    {
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
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    {
      "lang": "en",
      "value": "\nIn the DES implementation, the affected product versions use a default key for encryption. Successful exploitation allows an attacker to obtain sensitive information and gain access to the network elements that are managed by the affected products versions.\n\n\n\n\n\nThis issue affects \n\n\n\n  *  FOXMAN-UN product: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN-UN R9C; \n  *  UNEM product: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C.\n\n\n\n\nList of CPEs: \n  *  cpe:2.3:a:hitachienergy:foxman-un:R16A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R15B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R15A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R14B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R14A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R11B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R11A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R10C:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R9C:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R16A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R15B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R15A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R14B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R14A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R11B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R11A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R10C:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R9C:*:*:*:*:*:*:*\n\n\n\n\n\n\n"
    },
    {
      "lang": "es",
      "value": "En la implementación de DES, las versiones de producto afectadas utilizan una clave predeterminada para el cifrado. La explotación exitosa permite a un atacante obtener información confidencial y acceso a los elementos de red administrados por las versiones de los productos afectados. Este problema afecta a: \n * FOXMAN-UN: FOXMAN-UN R16A, FOXMAN-UN R15B, FOXMAN-UN R15A, FOXMAN-UN R14B, FOXMAN-UN R14A, FOXMAN-UN R11B, FOXMAN-UN R11A, FOXMAN-UN R10C, FOXMAN -ONU R9C;\n * UNEM: UNEM R16A, UNEM R15B, UNEM R15A, UNEM R14B, UNEM R14A, UNEM R11B, UNEM R11A, UNEM R10C, UNEM R9C.\n\nLista de CPE:\n  *  cpe:2.3:a:hitachienergy:foxman-un:R16A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R15B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R15A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R14B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R14A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R11B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R11A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R10C:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:foxman-un:R9C:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R16A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R15B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R15A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R14B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R14A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R11B:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R11A:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R10C:*:*:*:*:*:*:*\n  *  cpe:2.3:a:hitachienergy:unem:R9C:*:*:*:*:*:*:* "
    }
  ],
  "lastModified": "2026-06-17T04:06:45.673",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}