The publish/subscribe model has gained prominence in the Internet of things (IoT) network. and both Message Queue Telemetry Transport (MQTT) and Constrained Application Protocol (CoAP) support it. However. existing coverage-based fuzzers may miss some paths when fuzzing such publish/subscribe protocols. https://www.jmannino.com/deal-alert-Sink-Front-Polymer-Tip-Out-Trays-with-Hinges-flash-find/