CVE-2020-20227: MikroTik RouterOS

Medium severity, CVSS 6.5. EPSS: 3.1% chance of exploitation in the next 30 days.

Mikrotik RouterOs stable 6.47 suffers from a memory corruption vulnerability in the /nova/bin/diskd process. An authenticated remote attacker can cause a Denial of Service due to invalid memory access.

Affected products

• MikroTik RouterOS: version 6.47 only

Published 2021-05-18. Last modified 2026-06-17.