Lotus Notes is the client for Lotus Domino servers.
A buffer overflow in the HTML Speed Reader component of the Lotus Notes e-mail client allows command execution by a specially crafted e-mail message containing a long link URL.
Upgrade to version 6.5.5 or 7.0.1 or higher.
Exploit works on Lotus Notes 6.5.4. This exploit sends an e-mail to the specified address and requires the user to follow the ClickOnMe link.