### [CVE-2011-4503](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4503) ![](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 The UPnP IGD implementation in Broadcom Linux on the Sitecom WL-111 allows remote attackers to establish arbitrary port mappings by sending a UPnP AddPortMapping action in a SOAP request to the WAN interface, related to an "external forwarding" vulnerability. ### POC #### Reference - http://www.kb.cert.org/vuls/id/357851 #### Github No PoCs found on GitHub currently.