cve/2004/CVE-2004-0551.md

### [CVE-2004-0551](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0551)
![](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 CatOS 5.x before 5.5(20) through 8.x before 8.2(2) and 8.3(2)GLX, as used in Catalyst switches, allows remote attackers to cause a denial of service (system crash and reload) by sending invalid packets instead of the final ACK portion of the three-way handshake to the (1) Telnet, (2) HTTP, or (3) SSH services, aka "TCP-ACK DoS attack."

### POC

#### Reference
- http://www.cisco.com/warp/public/707/cisco-sa-20040609-catos.shtml

#### Github
No PoCs found on GitHub currently.