SEC Consult Security Advisory 20090305-1 – IBM Director for Windows versions 5.20.3 Service Update 2 and below suffer from a remote denial of service vulnerability.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/75596/SA-20090305-1.txt
Source: https://packetstormsecurity.com/files/75596/IBM-Directory-CIM-Denial-Of-Service.html