Cisco Security Advisory – Cisco Unified Communications Manager (CUCM), formerly CallManager, contains two overflow vulnerabilities that could allow a remote, unauthenticated user to cause a denial of service (DoS) condition or execute arbitrary code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/57663/cisco-sa-20070711-cucm.txt
Source: https://packetstormsecurity.com/files/57663/Cisco-Security-Advisory-20070711-cucm.html