Format string vulnerability in Lotus Domino 6.0.x before 6.0.5 and 6.5.x before 6.5.4 allows remote attackers to cause a denial of service via the Notes protocol (NRPC).
https://exchange.xforce.ibmcloud.com/vulnerabilities/20043
http://www.securityfocus.com/bid/13446
http://www-1.ibm.com/support/docview.wss?rs=463&uid=swg21202525