CVE-2020-20262: MikroTik RouterOS

Medium severity, CVSS 6.5. EPSS: 2.1% chance of exploitation in the next 30 days.

Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /ram/pckg/security/nova/bin/ipsec process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.

Affected products

• MikroTik RouterOS: before 6.47 (fixed in 6.47)

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