CVE-2015-2520: Microsoft Excel

High severity, CVSS 9.3. EPSS: 27.7% chance of exploitation in the next 30 days.

Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel for Mac 2011 and 2016, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."

Affected products

• Microsoft Excel: version 2007 only; version 2010 only; version 2011 only; version 2013 only; version 2016 only
• Microsoft Excel Viewer: any version
• Microsoft Office Compatibility Pack: any version

Published 2015-09-09. Last modified 2026-06-17.