CVE-2019-15615: Nextcloud

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

A wrong check for the system time in the Android App 3.9.0 causes a bypass of the lock protection when changing the time of the system to the past.

Affected products

• Nextcloud Nextcloud: up to and including 3.9.0

Published 2020-02-04. Last modified 2026-06-17.