CVE-2018-10066
CVSS v3
8.1
HIGH
EPSS Score
1.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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).
Technical details
- Published
- 2018-04-13
Frequently asked questions
What is CVE-2018-10066?
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).
Is CVE-2018-10066 actively exploited?
Active exploitation of CVE-2018-10066 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-10066?
CVE-2018-10066 has a CVSS v3 base score of 8.1 (HIGH severity).
Is CVE-2018-10066 affecting your environment?
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