{"id":"CVE-2020-12523","aliases":["EUVD-2020-4825","GHSA-fwfg-74jc-wgx8"],"status":"published","title":"Phoenix Contact mGuard Devices versions before 8.8.3: LAN ports get functional after reboot even if they are disabled in the device configuration","description":"On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00899,"percentile":0.60064,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-909"],"published":"2020-12-17T22:43:14Z","modified":"2026-06-17T02:51:58Z","products":[{"vendor":"innominate","product":"innominate mguard rs4000 4tx/3g/tx vpn"},{"vendor":"innominate","product":"innominate mguard rs4000 4tx/tx"},{"vendor":"innominate","product":"innominate mguard rs4000 4tx/tx vpn"},{"vendor":"phoenix contact","product":"fl mguard rs4004 tx/dtx (2701876)"},{"vendor":"phoenix contact","product":"fl mguard rs4004 tx/dtx vpn (2701877)"},{"vendor":"phoenix contact","product":"tc mguard rs4000 3g vpn (2903440)"},{"vendor":"phoenix contact","product":"tc mguard rs4000 4g att vpn (1010463)"},{"vendor":"phoenix contact","product":"tc mguard rs4000 4g vpn (2903586)"},{"vendor":"phoenix contact","product":"tc mguard rs4000 4g vzw vpn (1010461)"},{"vendor":"phoenixcontact","product":"fl_mguard_rs4004_tx\\/dtx_firmware"},{"vendor":"phoenixcontact","product":"fl_mguard_rs4004_tx\\/dtx_vpn_firmware"},{"vendor":"phoenixcontact","product":"innominate_mguard_rs4000_4tx\\/3g\\/tx_vpn_firmware"},{"vendor":"phoenixcontact","product":"innominate_mguard_rs4000_4tx\\/tx_firmware"},{"vendor":"phoenixcontact","product":"innominate_mguard_rs4000_4tx\\/tx_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs4000_3g_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs4000_4g_att_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs4000_4g_vpn_firmware"},{"vendor":"phoenixcontact","product":"tc_mguard_rs4000_4g_vzw_vpn_firmware"}],"references":[{"url":"https://cert.vde.com/en-us/advisories/vde-2020-046","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12523"},{"url":"https://github.com/advisories/GHSA-fwfg-74jc-wgx8"}],"sources":{"cve":[{"id":"CVE-2020-12523","title":"Phoenix Contact mGuard Devices versions before 8.8.3: LAN ports get functional after reboot even if they are disabled in the device configuration","description":"On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource","status":"published","published":"2020-12-17T22:43:14.788Z","modified":"2024-09-16T19:04:46.625Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-909"],"updated_at":"2026-11-02T14:35:52.925152Z"}],"euvd":[{"id":"EUVD-2020-4825","description":"On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource","status":"published","published":"2020-12-17T22:43:14Z","modified":"2024-09-16T19:04:46Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T00:55:26.73018Z"}],"ghsa":[{"id":"GHSA-fwfg-74jc-wgx8","title":"On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot...","description":"On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource","status":"published","published":"2022-05-24T17:36:49Z","modified":"2023-01-29T05:04:47Z","cwes":["CWE-909"],"updated_at":"2026-11-02T14:45:38.359776Z"}],"nvd":[{"id":"CVE-2020-12523","description":"On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource","status":"published","published":"2020-12-17T23:15:13.263Z","modified":"2026-06-17T02:51:58.11Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-909"],"updated_at":"2026-11-02T14:06:27.73474Z"}]}}