CVE-2026-21989

Estado: AnalizadaAlta (8.1)—

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 creation, deletion or modification access to critical data or all Oracle VM VirtualBox accessible data as well as unauthorized access to critical data or complete access to all 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 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L).

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L
Puntuación base: 8.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.21%
Percentil entre todas las CVEs puntuadas: 11
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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation90 %
Impacto principalT1565.002 Transmitted Data Manipulationimpact85 %
Impacto secundarioT1005 Data from Local Systemcollection85 %
Impacto secundarioT1499.004 Application or System Exploitationimpact70 %

AV:L + PR:H indica escalada local de privilegios (T1068). Impactos: modificación de datos críticos (I:H → T1565.002), acceso a datos (C:H → T1005), DoS parcial (A:L → T1499.004).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence Program Filter Network Traffic Execution Prevention Encrypt Sensitive Information Application Isolation and Sandboxing Exploit Protection

Tecnologías afectadas (1)

Oracle — VM Virtualbox

CWE

NVD-CWE-noinfo

Referencias

https://www.oracle.com/security-alerts/cpujan2026.html

JSON original (NVD)

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      "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 creation, deletion or modification access to critical data or all Oracle VM VirtualBox accessible data as well as  unauthorized access to critical data or complete access to all 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 8.1 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L)."
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      "value": "Vulnerabilidad en el producto Oracle VM VirtualBox de Oracle Virtualization (componente: Core). Las versiones compatibles afectadas son 7.1.14 y 7.2.4. Vulnerabilidad fácilmente explotable permite a un atacante con altos privilegios y acceso a la infraestructura donde se ejecuta Oracle VM VirtualBox comprometer Oracle VM VirtualBox. Aunque la vulnerabilidad reside en Oracle VM VirtualBox, los ataques pueden impactar significativamente productos adicionales (cambio de alcance). Los ataques exitosos de esta vulnerabilidad pueden resultar en acceso no autorizado de creación, eliminación o modificación a datos críticos o a todos los datos accesibles por Oracle VM VirtualBox, así como acceso no autorizado a datos críticos o acceso completo a todos los datos accesibles por Oracle VM VirtualBox y la capacidad no autorizada de causar una denegación de servicio parcial (DoS parcial) de Oracle VM VirtualBox. Puntuación Base CVSS 3.1 de 8.1 (impactos en Confidencialidad, Integridad y Disponibilidad). Vector CVSS: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L)."
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  "lastModified": "2026-06-17T10:19:18.790",
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