An issue was discovered in MikroTik RouterOS 6.41.4
Published Apr 13, 2018
8.1
HIGHCVSS 3.0
EPSS 1.01%
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).
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.01% (0.01013) | 61.98th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.03% (0.01033) | 62.26th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.48% (0.00484) | 76.22th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.48% (0.00484) | 75.26th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.48% (0.00484) | 72.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.52% (0.00523) | 12.55th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.52% (0.00523) | 0.00th | v1 |
References (1)
- https://janis-streib.de/2018/04/11/mikrotik-openvpn-security x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://janis-streib.de/2018/04/11/mikrotik-openvpn-security | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.