{"id":"CVE-2021-27406","aliases":["EUVD-2021-14160","GHSA-qxvq-2x4g-3vm7"],"status":"published","title":"PerFact  OpenVPN-Client","description":"An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0122,"percentile":0.6892,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-15","CWE-610"],"published":"2022-10-14T00:00:00Z","modified":"2026-06-17T03:44:48Z","products":[{"vendor":"perfact","product":"openvpn-client"}],"references":[{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01","tags":["x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27406"},{"url":"https://github.com/advisories/GHSA-qxvq-2x4g-3vm7"}],"sources":{"cve":[{"id":"CVE-2021-27406","title":"PerFact  OpenVPN-Client","description":"An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.","status":"published","published":"2022-10-14T00:00:00Z","modified":"2025-04-16T17:46:31.383Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-15"],"updated_at":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-14160","description":"An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.","status":"published","published":"2022-10-14T00:00:00Z","modified":"2025-04-16T17:46:31Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:22.940917Z"}],"ghsa":[{"id":"GHSA-qxvq-2x4g-3vm7","title":"An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the...","description":"An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.","status":"published","published":"2022-10-14T19:00:22Z","modified":"2023-01-30T05:07:09Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-610"],"updated_at":"2026-11-02T14:47:38.392867Z"}],"nvd":[{"id":"CVE-2021-27406","description":"An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.","status":"published","published":"2022-10-14T17:15:10.53Z","modified":"2026-06-17T03:44:48.07Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-15","CWE-610"],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}