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CVE-2021-26726

Estado: ModificadaAlta (8.8)—

A remote code execution vulnerability affecting a Valmet DNA service listening on TCP port 1517, allows an attacker to execute commands with SYSTEM privileges This issue affects: Valmet DNA versions from Collection 2012 until Collection 2021.

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)

Valmet — DNA

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-26726",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 8.3,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/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": 6.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "prodsec@nozominetworks.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/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": 2.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/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": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "prodsec@nozominetworks.com",
      "affectedData": [
        {
          "vendor": "Valmet DNA",
          "product": "Valmet DNA",
          "versions": [
            {
              "status": "affected",
              "version": "Collection 2012",
              "lessThan": "Collection 2021",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-02-16T16:15:08.150",
  "references": [
    {
      "url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26726/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "prodsec@nozominetworks.com"
    },
    {
      "url": "https://www.valmet.com/about-us/research-and-development/vulnerabilityadvisories/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "prodsec@nozominetworks.com"
    },
    {
      "url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26726/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.valmet.com/about-us/research-and-development/vulnerabilityadvisories/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "prodsec@nozominetworks.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        },
        {
          "lang": "en",
          "value": "CWE-209"
        },
        {
          "lang": "en",
          "value": "CWE-272"
        },
        {
          "lang": "en",
          "value": "CWE-305"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-330"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A remote code execution vulnerability affecting a Valmet DNA service listening on TCP port 1517, allows an attacker to execute commands with SYSTEM privileges This issue affects: Valmet DNA versions from Collection 2012 until Collection 2021."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de ejecución de código remota que afecta a un servicio de Valmet DNA que escucha en el puerto TCP 1517, permite a un atacante ejecutar comandos con privilegios SYSTEM Este problema afecta a: Valmet DNA versiones desde Collection 2012 hasta Collection 2021"
    }
  ],
  "lastModified": "2026-06-17T03:43:44.010",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:valmet:dna:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A93267CA-67B6-4E4A-BE03-C8485B1ED107",
              "versionEndIncluding": "2021",
              "versionStartIncluding": "2012"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "prodsec@nozominetworks.com"
}