TIBCO SmartSockets RTserver 6.8.0 and earlier, RTworks before 4.0.4, and Enterprise Message Service (EMS) 4.0.0 through 4.4.1 allows remote attackers to execute arbitrary code via crafted requests containing values that are used as pointer offsets.

More... (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2007-5657)