CVE-2020-11741

Estado: ModificadaAlta (8.8)—

Se detectó un problema en xenoprof en Xen versiones hasta 4.13.x, que permitía a usuarios invitados del Sistema Operativo (con perfiles activos) obtener información confidencial sobre otros invitados, causar una denegación de servicio o posiblemente alcanzar privilegios. Para aquellos invitados a los que el administrador habilitó la creación de perfiles "active", el código xenoprof usa la estructura de anillo compartida de Xen estándar. Desafortunadamente, este código no trató al invitado como un adversario potencial: confía en que el invitado no modificará la información del tamaño del búfer ni modificará los punteros de cabeza y cola de forma inesperada. Esto puede bloquear el host (DoS). La escalada de privilegios no puede ser descartada.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.42%
Percentil entre todas las CVEs puntuadas: 35
Fecha de la puntuación: 8/10/2026

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 (4)

Debian — Debian Linux Fedoraproject — Fedora Opensuse — Leap XEN — XEN

CWE

CWE-909

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-11741",
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          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
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          "accessComplexity": "MEDIUM",
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          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
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    },
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    }
  ],
  "lastModified": "2026-06-17T02:50:43.280",
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