### [CVE-2003-0567](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0567) ![](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 Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence of IPv4 packets to an interface on the device, causing the input queue on that interface to be marked as full. ### POC #### Reference - http://www.cert.org/advisories/CA-2003-17.html - http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml #### Github No PoCs found on GitHub currently.