Microsoft Excel Opcode Handling Unspecified Remote Code Execution Vulnerability
Microsoft Excel is reportedly prone to an unspecified remote code-execution vulnerability.
Successfully exploiting this issue allows attackers to execute arbitrary code in the context of targeted users.
Note that Microsoft Office applications include functionality to embed Office files as objects contained in other Office files. As an example, Microsoft Word files may contain embedded malicious Microsoft Excel files, making Word and other Office documents another possible attack vector.
Insufficient details are currently available to elaborate further.