### [CVE-2017-7653](https://www.cve.org/CVERecord?id=CVE-2017-7653) ![](https://img.shields.io/static/v1?label=Vendor&message=The%20Eclipse%20Foundation&color=blue) ![](https://img.shields.io/static/v1?label=Product&message=Eclipse%20Mosquitto&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=unspecified&color=brightgreen) ![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-20%3A%20Improper%20Input%20Validation&color=brightgreen) ### Description The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients. ### POC #### Reference No PoCs from references. #### Github No PoCs found on GitHub currently.