CVE-2020-20237: MikroTik RouterOS

Medium severity, CVSS 6.5. EPSS: 2.8% chance of exploitation in the next 30 days.

Mikrotik RouterOs 6.46.3 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/sniffer process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.

Affected products

• MikroTik RouterOS: version 6.46.3 only

Published 2021-05-18. Last modified 2026-06-17.