CVE-2020-20217: MikroTik RouterOS

Medium severity, CVSS 6.5. EPSS: 2% chance of exploitation in the next 30 days.

Mikrotik RouterOs before 6.47 (stable tree) suffers from an uncontrolled resource consumption vulnerability in the /nova/bin/route process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.

Affected products

• MikroTik RouterOS: before 6.47 (fixed in 6.47)

Published 2021-07-08. Last modified 2026-06-17.