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Alto CVE-2026-33389 Multiple Vendors

[CVE-2026-33389] An improper certificate/host key validation vulnerability was discovered in the Smart Polling functi…

Vulnerabilidad · Publicado 08/09/2026

7.5
CVSS 3.x
04 Medio7 Alto9 Crítico10
Severidad: Alto
Resumen ejecutivo

An improper certificate/host key validation vulnerability was discovered in the Smart Polling functionality, which established encrypted connections to target devices without validating the remote host's identity, and no option was provided to enable it. A man-in-the-middle attacker positioned between a sensor and a polled device can, during a polling session, impersonate the device and intercept …

Descripción técnica

Descripción técnica

An improper certificate/host key validation vulnerability was discovered in the Smart Polling functionality, which established encrypted connections to target devices without validating the remote host's identity, and no option was provided to enable it. A man-in-the-middle attacker positioned between a sensor and a polled device can, during a polling session, impersonate the device and intercept the communication, including the credentials used to access it. The captured credentials can then be replayed to authenticate against the device itself or against other devices sharing the same credentials, allowing the attacker to access and tamper with the device's data and to disrupt its operations.

Puntuación CVSS

Score: 7.5/10 — Severidad: HIGH — Estado NIST: Received

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L

Debilidades (CWE)

CWE-671

Fuente oficial

Publicado en NIST NVD.

¿Qué hacer?
  • Revisar el aviso oficial del fabricante y aplicar los parches o mitigaciones disponibles
  • Consultar las referencias en NIST NVD para actualizaciones de estado
  • Priorizar según el score CVSS y la exposición de los sistemas afectados
Esta alerta fue generada automáticamente a partir del NVD del NIST.