### [CVE-2016-5261](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5261) ![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen) ### Description Integer overflow in the WebSocketChannel class in the WebSockets subsystem in Mozilla Firefox before 48.0 and Firefox ESR < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets that trigger incorrect buffer-resize operations during buffering. ### POC #### Reference - https://bugzilla.mozilla.org/show_bug.cgi?id=1287266 #### Github No PoCs found on GitHub currently.