There were 5198 reported vulnerabilities: 812 Windows operating system vulnerabilities; 2328 Unix/Linux operating vulnerabilities; and 2058 Multiple operating system vulnerabilities.
For the complete list see:
Edit and Note (1/6/06): this report is not without its critics, especially from the open source community. For a summary of some of the questions the report raised, see the article from ZDUKNet:
Edited by jgweed, 06 January 2006 - 01:26 PM.