CVE-2026-54100

Estado: ModificadaAlta (8.3)—

A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of Windows node identities in the cluster.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Puntuación base: 8.3

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.30%
Percentil entre todas las CVEs puntuadas: 21
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 principalT1557 Adversary-in-the-Middlecredential access · collection85 %
Impacto secundarioT1098.001 Additional Cloud Credentialspersistence · privilege escalation75 %
Impacto secundarioT1552.007 Container APIcredential access80 %

Vulnerabilidad de red adyacente (AV:A) en servicio SSH sin verificación de host key, permitiendo MITM para capturar credenciales de bootstrap y comprometer identidades de nodo. T1210 por explotación de servicio remoto en red adyacente; T1557 como ataque MITM principal; T1552.007 por robo de credenci

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

Network Segmentation Privileged Account Management Disable or Remove Feature or Program User Account Management Limit Access to Resource Over Network Vulnerability Scanning

Tecnologías afectadas (2)

Redhat — Openshift Container Platform Redhat — Windows Machine Config Operator

CWE

CWE-295
CWE-295

Referencias

JSON original (NVD)

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