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CVE-2026-21981

Estado: AnalizadaMedia (4.6)—

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are 7.1.14 and 7.2.4. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products (scope change).

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Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle VM VirtualBox accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 4.6 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:L).

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)

Oracle — VM Virtualbox

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-21981",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-21981",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-21T14:30:49.228944Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secalert_us@oracle.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4.6,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 1.5
      }
    ]
  },
  "affected": [
    {
      "source": "secalert_us@oracle.com",
      "affectedData": [
        {
          "vendor": "Oracle Corporation",
          "product": "Oracle VM VirtualBox",
          "versions": [
            {
              "status": "affected",
              "version": "7.1.14",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "7.2.4",
              "versionType": "semver"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-01-20T22:16:01.510",
  "references": [
    {
      "url": "https://www.oracle.com/security-alerts/cpujan2026.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert_us@oracle.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core).  Supported versions that are affected are 7.1.14 and  7.2.4. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox.  While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized read access to a subset of Oracle VM VirtualBox accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 4.6 (Confidentiality and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:L)."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad en el producto Oracle VM VirtualBox de Oracle Virtualization (componente: Core). Las versiones compatibles que están afectadas son 7.1.14 y 7.2.4. La vulnerabilidad fácilmente explotable permite a un atacante con altos privilegios con inicio de sesión en la infraestructura donde se ejecuta Oracle VM VirtualBox comprometer Oracle VM VirtualBox. Aunque la vulnerabilidad está en Oracle VM VirtualBox, los ataques pueden impactar significativamente productos adicionales (cambio de alcance). Los ataques exitosos de esta vulnerabilidad pueden resultar en acceso de lectura no autorizado a un subconjunto de datos accesibles de Oracle VM VirtualBox y capacidad no autorizada de causar una denegación de servicio parcial (DoS parcial) de Oracle VM VirtualBox. Puntuación Base CVSS 3.1 de 4.6 (impactos en la Confidencialidad y Disponibilidad). Vector CVSS: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:L)."
    }
  ],
  "lastModified": "2026-06-17T10:19:16.573",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:oracle:vm_virtualbox:7.1.14:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "723CD90A-7213-4B3C-B969-C6D7110CAF46"
            },
            {
              "criteria": "cpe:2.3:a:oracle:vm_virtualbox:7.2.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "44ABFABE-8FFC-48CF-B627-4241CAD563B6"
            }
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          "operator": "OR"
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  "sourceIdentifier": "secalert_us@oracle.com"
}