CVE-2020-22844: MikroTik RouterOS

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

A buffer overflow in Mikrotik RouterOS 6.47 allows unauthenticated attackers to cause a denial of service (DOS) via crafted SMB requests.

Affected products

• MikroTik RouterOS: version 6.47 only

Published 2022-02-28. Last modified 2026-06-17.