CVE-2021-34410: Zoom Plugin For Microsoft Outlook

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A user-writable application bundle unpacked during the install for all versions of the Zoom Plugin for Microsoft Outlook for Mac before 5.0.25611.0521 allows for privilege escalation to root.

Affected products

• Zoom Zoom Plugin For Microsoft Outlook: before 5.0.25611.0521 (fixed in 5.0.25611.0521)

Published 2021-09-27. Last modified 2026-06-17.