CVE-2020-20248: MikroTik RouterOS

Medium severity, CVSS 6.5. EPSS: 1.8% chance of exploitation in the next 30 days.

Mikrotik RouterOs before stable 6.47 suffers from an uncontrolled resource consumption in the memtest process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.

Affected products

• MikroTik RouterOS: version 6.47 only

Published 2021-07-19. Last modified 2026-06-17.