Heap-based buffer overflow in Microsoft Office Excel 2007 SP1 and SP2; Office Excel Viewer SP1 and SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote attackers to execute arbitrary code via a crafted spreadsheet in which "a MDXTUPLE record is broken up into several records," aka "Microsoft Office Excel MDXTUPLE Record Heap Overflow Vulnerability."
Improper Control of Generation of Code The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.