Microsoft Internet Explorer <6 - RCE
The Tabular Data Control (TDC) ActiveX control in Microsoft Internet Explorer 5.01 SP4, 6 on Windows XP SP2 and SP3, and 6 SP1 allows remote attackers to execute arbitrary code via a long URL (DataURL parameter) that triggers memory corruption in the CTDCCtl::SecurityCHeckDataURL function, aka "Memory Corruption Vulnerability."