CVE-2017-8571: Microsoft Outlook

High severity, CVSS 7.8. EPSS: 5.8% chance of exploitation in the next 30 days.

Microsoft Outlook 2007 SP3, Outlook 2010 SP2, Outlook 2013 SP1, Outlook 2013 RT SP1, and Outlook 2016 as packaged in Microsoft Office allows a security feature bypass vulnerability due to the way that it handles input, aka "Microsoft Office Outlook Security Feature Bypass Vulnerability".

Affected products

• Microsoft Outlook: version 2007 only; version 2010 only; version 2013 only; version 2016 only

Published 2017-08-01. Last modified 2026-06-17.