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CVE-2021-21589

Estado: ModificadaMedia (6.7)—

Dell EMC Unity, Unity XT, and UnityVSA versions prior to 5.1.0.0.5.394 do not exit on failed Initialization. A local authenticated Service user could potentially exploit this vulnerability to escalate privileges.

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 (3)

Dell — EMC Unity Operating EnvironmentDell — EMC Unity XT Operating EnvironmentDell — EMC Unityvsa Operating Environment

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-21589",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security_alert@emc.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 0.5
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "security_alert@emc.com",
      "affectedData": [
        {
          "vendor": "Dell",
          "product": "Unity",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "5.1.0.0.5.394",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-07-12T16:15:08.680",
  "references": [
    {
      "url": "https://www.dell.com/support/kbdoc/000189204",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security_alert@emc.com"
    },
    {
      "url": "https://www.dell.com/support/kbdoc/000189204",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dell EMC Unity, Unity XT, and UnityVSA versions prior to 5.1.0.0.5.394 do not exit on failed Initialization. A local authenticated Service user could potentially exploit this vulnerability to escalate privileges."
    },
    {
      "lang": "es",
      "value": "Dell EMC Unity, Unity XT y UnityVSA versiones anteriores a 5.1.0.5.394, no escapan en un fallo de inicialización. Un usuario local autenticado del Servicio podría explotar potencialmente esta vulnerabilidad para escalar privilegios"
    }
  ],
  "lastModified": "2026-06-17T03:35:50.097",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dell:emc_unity_operating_environment:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "531AB7E0-ACA7-4C07-A4B4-500D16A894EA",
              "versionEndExcluding": "5.1.0.0.5.394"
            },
            {
              "criteria": "cpe:2.3:a:dell:emc_unity_xt_operating_environment:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A2F3F015-06EF-4E9F-895F-CCE3580C1178",
              "versionEndExcluding": "5.1.0.0.5.394"
            },
            {
              "criteria": "cpe:2.3:a:dell:emc_unityvsa_operating_environment:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "61642158-7A1F-4563-ABFF-089EDD975AB1",
              "versionEndExcluding": "5.1.0.0.5.394"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security_alert@emc.com"
}