CVE-2015-2378: Microsoft Excel

Medium severity, CVSS 6.9. EPSS: 6.1% chance of exploitation in the next 30 days.

Untrusted search path vulnerability in Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel Viewer 2007 SP3, and Office Compatibility Pack SP3 allows local users to gain privileges via a Trojan horse DLL in the current working directory, aka "Microsoft Excel DLL Remote Code Execution Vulnerability."

Affected products

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

Published 2015-07-14. Last modified 2026-06-17.