CVE-2021-32070: Mitel MiCollab

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

The MiCollab Client Service component in Mitel MiCollab before 9.3 could allow an attacker to perform a clickjacking attack due to an insecure header response. A successful exploit could allow an attacker to modify the browser header and redirect users.

Affected products

• Mitel MiCollab: before 9.3 (fixed in 9.3)

Published 2021-08-13. Last modified 2026-06-17.