{"id":"CVE-2018-10646","aliases":["EUVD-2018-2718","GHSA-537h-9xcq-rw7q"],"status":"published","title":"CyberGhost 6.5.0.3180 for Windows suffers from a SYSTEM privilege escalation vulnerability...","description":"CyberGhost 6.5.0.3180 for Windows suffers from a SYSTEM privilege escalation vulnerability through the \"CG6Service\" service. This service establishes a NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The \"ConnectToVpnServer\" method accepts a \"connectionParams\" argument that provides attacker control of the OpenVPN command line. An attacker can specify a dynamic library plugin that should run for every new VPN connection attempt. This plugin will execute code in the context of the SYSTEM user.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0037,"percentile":0.31195,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732"],"published":"2018-05-02T07:00:00Z","modified":"2026-06-17T01:34:22Z","products":[{"vendor":"cyberghostvpn","product":"cyberghost"}],"references":[{"url":"https://github.com/VerSprite/research/blob/master/advisories/VS-2018-023.md","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-10646"},{"url":"https://github.com/advisories/GHSA-537h-9xcq-rw7q"}],"sources":{"cve":[{"id":"CVE-2018-10646","description":"CyberGhost 6.5.0.3180 for Windows suffers from a SYSTEM privilege escalation vulnerability through the \"CG6Service\" service. This service establishes a NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The \"ConnectToVpnServer\" method accepts a \"connectionParams\" argument that provides attacker control of the OpenVPN command line. An attacker can specify a dynamic library plugin that should run for every new VPN connection attempt. This plugin will execute code in the context of the SYSTEM user.","status":"published","published":"2018-05-02T07:00:00Z","modified":"2024-08-05T07:46:47.068Z","updated_at":"2026-11-02T14:35:01.619448Z"}],"euvd":[{"id":"EUVD-2018-2718","description":"CyberGhost 6.5.0.3180 for Windows suffers from a SYSTEM privilege escalation vulnerability through the \"CG6Service\" service. This service establishes a NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The \"ConnectToVpnServer\" method accepts a \"connectionParams\" argument that provides attacker control of the OpenVPN command line. An attacker can specify a dynamic library plugin that should run for every new VPN connection attempt. This plugin will execute code in the context of the SYSTEM user.","status":"published","published":"2018-05-02T07:00:00Z","modified":"2024-08-05T07:46:47Z","updated_at":"2026-11-03T02:39:57.544825Z"}],"ghsa":[{"id":"GHSA-537h-9xcq-rw7q","title":"CyberGhost 6.5.0.3180 for Windows suffers from a SYSTEM privilege escalation vulnerability...","description":"CyberGhost 6.5.0.3180 for Windows suffers from a SYSTEM privilege escalation vulnerability through the \"CG6Service\" service. This service establishes a NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The \"ConnectToVpnServer\" method accepts a \"connectionParams\" argument that provides attacker control of the OpenVPN command line. An attacker can specify a dynamic library plugin that should run for every new VPN connection attempt. This plugin will execute code in the context of the SYSTEM user.","status":"published","published":"2022-05-13T01:48:50Z","modified":"2023-02-02T05:01:48Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:51:16.189266Z"}],"nvd":[{"id":"CVE-2018-10646","description":"CyberGhost 6.5.0.3180 for Windows suffers from a SYSTEM privilege escalation vulnerability through the \"CG6Service\" service. This service establishes a NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The \"ConnectToVpnServer\" method accepts a \"connectionParams\" argument that provides attacker control of the OpenVPN command line. An attacker can specify a dynamic library plugin that should run for every new VPN connection attempt. This plugin will execute code in the context of the SYSTEM user.","status":"published","published":"2018-05-02T07:29:00.447Z","modified":"2026-06-17T01:34:22.22Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:04:26.098615Z"}]}}