CVE Watch18 sept 2026

CVE-2026-92943

Improper validation of certificate with host mismatch in the MQTT client TLS connection layer in AWS IoT Device SDK for Python 1.5.3 through

CVSS

8.1

Alto

EPSS

0.3%

p20

KEV

—

Exploit Today

0-100

Publicado: 17 sept 2026 · Última mod.: 18 sept 2026 · CWE-297

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Improper validation of certificate with host mismatch in the MQTT client TLS connection layer in AWS IoT Device SDK for Python 1.5.3 through 1.6.0 on Python 3.7 and later might allow an adversary-in-the-middle actor to impersonate the AWS IoT Core endpoint, read device telemetry, and inject arbitrary MQTT messages that the device processes as authentic, via a certificate issued for an unrelated hostname by a certificate authority present in the device trust store. To remediate this issue, users should upgrade to version 1.6.1.

Referencias oficiales

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