{"id":"CVE-2017-3765","aliases":["EUVD-2017-12882","GHSA-6r95-2q8q-g3c2"],"status":"published","title":"In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter...","description":"In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter products, an authentication bypass known as \"HP Backdoor\" was discovered during a Lenovo security audit in the serial console, Telnet, SSH, and Web interfaces. This bypass mechanism can be accessed when performing local authentication under specific circumstances. If exploited, admin-level access to the switch is granted.","severity":{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00269,"percentile":0.1912,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2018-01-10T18:00:00Z","modified":"2026-06-17T01:18:52Z","products":[{"vendor":"lenovo","product":"enterprise_network_operating_system"},{"vendor":"lenovo group ltd.","product":"enterprise network operating system affecting lenovo and ibm rackswitch and bladecenter products"}],"references":[{"url":"https://support.lenovo.com/us/en/product_security/LEN-16095","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Patch","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1040296","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-3765"},{"url":"https://github.com/advisories/GHSA-6r95-2q8q-g3c2"}],"sources":{"cve":[{"id":"CVE-2017-3765","description":"In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter products, an authentication bypass known as \"HP Backdoor\" was discovered during a Lenovo security audit in the serial console, Telnet, SSH, and Web interfaces. This bypass mechanism can be accessed when performing local authentication under specific circumstances. If exploited, admin-level access to the switch is granted.","status":"published","published":"2018-01-10T18:00:00Z","modified":"2024-09-17T01:10:39.1Z","updated_at":"2026-11-02T14:33:15.887816Z"}],"euvd":[{"id":"EUVD-2017-12882","description":"In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter products, an authentication bypass known as \"HP Backdoor\" was discovered during a Lenovo security audit in the serial console, Telnet, SSH, and Web interfaces. This bypass mechanism can be accessed when performing local authentication under specific circumstances. If exploited, admin-level access to the switch is granted.","status":"published","published":"2018-01-10T18:00:00Z","modified":"2024-09-17T01:10:39Z","updated_at":"2026-11-03T00:28:52.18343Z"}],"ghsa":[{"id":"GHSA-6r95-2q8q-g3c2","title":"In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter...","description":"In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter products, an authentication bypass known as \"HP Backdoor\" was discovered during a Lenovo security audit in the serial console, Telnet, SSH, and Web interfaces. This bypass mechanism can be accessed when performing local authentication under specific circumstances. If exploited, admin-level access to the switch is granted.","status":"published","published":"2022-05-14T03:46:10Z","modified":"2023-02-03T05:00:33Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:52:48.49301Z"}],"nvd":[{"id":"CVE-2017-3765","description":"In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter products, an authentication bypass known as \"HP Backdoor\" was discovered during a Lenovo security audit in the serial console, Telnet, SSH, and Web interfaces. This bypass mechanism can be accessed when performing local authentication under specific circumstances. If exploited, admin-level access to the switch is granted.","status":"published","published":"2018-01-10T18:29:01.383Z","modified":"2026-06-17T01:18:52.96Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.2,"vector":"AV:L/AC:H/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:04:12.690425Z"}]}}