Endpoint Vulnerability

Microsoft Excel Information Disclosure Vulnerability


An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory. An attacker who exploited the vulnerability could access information previously deleted from the active worksheet. To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it. The update addresses the vulnerability by changing the way certain Excel functions handle objects in memory.

Affected Products

Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editions,Microsoft Excel 2013 RT Service Pack 1,Microsoft Office 2016 for Mac,Microsoft Excel 2013 Service Pack 1 (32-bit editions),Microsoft Excel 2013 Service Pack 1 (64-bit editions),Microsoft Excel Viewer 2007 Service Pack 3,Microsoft Excel 2016 x64,Microsoft Excel 2016 x86,Microsoft Office 2016 Click-to-Run (C2R) for 64-bit editions,Microsoft Office Compatibility Pack Service Pack 3