CVE-2026-7374

Estado: Pendiente de análisisCrítica (9.9)—

A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host's container runtime (CRI-O) socket, an attacker can hijack virt-handler's privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Puntuación base: 9.9

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.83%
Percentil entre todas las CVEs puntuadas: 56
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement90 %
Impacto principalT1068 Exploitation for Privilege Escalationprivilege escalation85 %

AV:N/PR:L permite T1210 (servicios remotos con privilegios). Symlink hijacking sobre socket privilegiado de virt-handler en cluster Kubernetes resulta en escalada a root/control total del nodo (T1068) y potencial compromiso de infraestructura cloud (T1578.003).

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 Application Isolation and Sandboxing Exploit Protection Update Software Vulnerability Scanning Privileged Account Management

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Kubevirt — Virt-handler^AI Redhat — Openshift^AI

CWE

CWE-59
CWE-59

Referencias

JSON original (NVD)

Mostrar

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      "lang": "es",
      "value": "Se encontró una falla en el componente virt-handler de KubeVirt. Esta vulnerabilidad permite a un usuario autenticado de OpenShift con permisos de edición en un único espacio de nombres explotar una validación incorrecta de enlaces simbólicos al conectarse a los sockets de consola de la máquina virtual. Al reemplazar el socket de la consola con un enlace simbólico al socket del tiempo de ejecución de contenedores (CRI-O) del host, un atacante puede secuestrar la conexión privilegiada del virt-handler. Esto permite al atacante acceder a cualquier socket Unix en el host, lo que podría llevar al control total del nodo y de todo el clúster."
    }
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  "lastModified": "2026-09-10T13:20:31.720",
  "sourceIdentifier": "secalert@redhat.com"
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