Smrx86

**Name of the Vulnerable Software and Affected Versions** Ruijie RG-EW300N firmware versions prior to 1.300.1422 **Description** The `mqlink.elf` service component in Ruijie RG-EW300N is susceptible to Remote Code Execution through a crafted MQTT broker message. The issue involves the processing of modified messages sent to the MQTT broker. The vulnerable component is `mqlink.elf`. **Recommendations** Update Ruijie RG-EW300N firmware to a version later than 1.300.1422.