CVE-2020-20231: MikroTik RouterOS

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

Mikrotik RouterOs through stable version 6.48.3 suffers from a memory corruption vulnerability in the /nova/bin/detnet process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

Affected products

• MikroTik RouterOS: from 6.44.6, up to and including 6.48.3

Published 2021-07-14. Last modified 2026-06-17.