CVE-2020-20219: MikroTik RouterOS

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

Mikrotik RouterOs 6.44.6 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/igmp-proxy process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

Affected products

• MikroTik RouterOS: version 6.44.6 only

Published 2021-07-21. Last modified 2026-06-17.