Microsoft released a total of five security bulletins in its June Patch Tuesday to close vulnerabilities in Windows, Internet Explorer and Office. However, a privilege escalation hole for which an exploit is being circulated on the net remains unpatched. The security patch for Office 2003 SP3 has been rated as critical because it closes a vulnerability that is already being exploited for attacks by cyber-criminals. Another critical update is the cumulative patch for Internet Explorer, which fixes 19 security holes in all versions of IE that can lead to malware infections.”]