{"id":"CVE-2018-10066","aliases":["EUVD-2018-2148","GHSA-vjgv-p598-g52v"],"status":"published","title":"An issue was discovered in MikroTik RouterOS 6.41.4. Missing OpenVPN server certificate...","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).","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01013,"percentile":0.63459,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2018-04-13T13:00:00Z","modified":"2026-06-17T01:33:26Z","products":[{"vendor":"mikrotik","product":"routeros"}],"references":[{"url":"https://janis-streib.de/2018/04/11/mikrotik-openvpn-security","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-10066"},{"url":"https://github.com/advisories/GHSA-vjgv-p598-g52v"}],"sources":{"cve":[{"id":"CVE-2018-10066","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).","status":"published","published":"2018-04-13T13:00:00Z","modified":"2024-08-05T07:32:00.889Z","updated_at":"2026-11-02T14:35:01.619448Z"}],"euvd":[{"id":"EUVD-2018-2148","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).","status":"published","published":"2018-04-13T13:00:00Z","modified":"2024-08-05T07:32:00Z","updated_at":"2026-11-03T02:39:59.5072Z"}],"ghsa":[{"id":"GHSA-vjgv-p598-g52v","title":"An issue was discovered in MikroTik RouterOS 6.41.4. Missing OpenVPN server certificate...","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).","status":"published","published":"2022-05-14T03:23:04Z","modified":"2023-02-02T05:07:45Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:52:34.922323Z"}],"nvd":[{"id":"CVE-2018-10066","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).","status":"published","published":"2018-04-13T13:29:00.487Z","modified":"2026-06-17T01:33:26.277Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:04:25.506659Z"}]}}