VULNERABILITY INTELLIGENCE
CVE-2026-33356
CVSS score7.7 HIGH
EPSS probability0.27%
CISA KEVNot currently listed
Published2026-05-11
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Description
In Meari IoT Cloud MQTT Broker deployments running EMQX 4.x, any authenticated low-privilege account can subscribe to global wildcard topics and receive telemetry from devices the user does not own. The broker enforces publish restrictions but does not enforce equivalent subscribe authorization at per-device scope.
Weakness classification
- 44488dab-36db-4358-99f9-bc116477f914: CWE-639