Websense Email Security and Email Manager are security applications. The applications are exposed to a remote denial of service vulnerability in the the Web Administrator frontend service "STEMWADM.EXE" listening on TCP port 8181 by default because it fails to handle specially crafted HTTP GET requests. Websense Email Security versions earlier than 7.1 Hotfix 4 and Websense Personal Email Manager versions earlier than 7.1 Hotfix 4 are affected by this issue.
Ref:
http://sotiriu.de/adv/NSOADV-2009-002.txt
09.44.5 - CVE: CVE-2009-3749
Platform: Third Party Windows Apps