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CVE-2026-33356

7.7 high SSVC exploitation: none Deferred
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 7.7NVD modified 2026-10-26 18:10

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 2