CVE-2020-20021: MikroTik RouterOS

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

An issue discovered in MikroTik Router v6.46.3 and earlier allows attacker to cause denial of service via misconfiguration in the SSH daemon.

Affected products

• MikroTik RouterOS: up to and including 6.46.3

Published 2023-07-12. Last modified 2026-07-09.