CVE-2020-17063: Microsoft 365 Apps

Medium severity, CVSS 6.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Microsoft Office Online Spoofing Vulnerability

Affected products

• Microsoft 365 Apps: affected versions not specified
• Microsoft Office: version 2019 only

Published 2020-11-11. Last modified 2026-06-17.