CVE-2018-10066: MikroTik RouterOS

High severity, CVSS 8.1. EPSS: 1% chance of exploitation in the next 30 days.

An issue was discovered in MikroTik RouterOS 6.41.4. Missing OpenVPN server certificate verification allows a remote unauthenticated attacker capable of intercepting client traffic to act as a malicious OpenVPN server. This may allow the attacker to gain access to the client's internal network (for example, at site-to-site tunnels).

Affected products

• MikroTik RouterOS: version 6.41.4 only

Published 2018-04-13. Last modified 2026-06-17.