Description
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).
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://janis-streib.de/2018/04/11/mikrotik-openvpn-security
Scores
CVSS v3
8.1
EPSS
0.0105
EPSS Percentile
59.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-295
Status
published
Products (1)
mikrotik/routeros
6.41.4
Published
Apr 13, 2018
Tracked Since
Feb 18, 2026