CVE-2021-3391: MobileIron Mobile@work

Medium severity, CVSS 5.3. EPSS: 1.1% chance of exploitation in the next 30 days.

MobileIron Mobile@Work through 2021-03-22 allows attackers to distinguish among valid, disabled, and nonexistent user accounts by observing the number of failed login attempts needed to produce a Lockout error message

Affected products

• MobileIron Mobile@work: up to and including 11.0.0.0.115r; up to and including 12.11.1

Published 2021-03-29. Last modified 2026-06-17.