CVE-2018-8246: Microsoft Excel

Medium severity, CVSS 5.5. EPSS: 19% chance of exploitation in the next 30 days.

An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Excel Viewer, Microsoft Office, Microsoft Excel.

Affected products

• Microsoft Excel: version 2010 only; version 2013 only; version 2016 only
• Microsoft Excel Viewer: affected versions not specified
• Microsoft Office: version 2010 only; version 2016 only
• Microsoft Office Compatibility Pack: affected versions not specified

Published 2018-06-14. Last modified 2026-06-17.