CVE-2019-3976 - Mikrotik Routeros
Critical 8.8
RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below are vulnerable to an arbitrary directory creation vulnerability via the upgrade package's name field. If an authenticated user installs a malicious package then a directory could be created and the developer shell could be enabled.
Affected software
Mikrotik Routeros