{"api_version":"1","generated_at":"2026-04-23T11:34:24+00:00","cve":"CVE-2020-12523","urls":{"html":"https://cve.report/CVE-2020-12523","api":"https://cve.report/api/cve/CVE-2020-12523.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-12523","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-12523"},"summary":{"title":"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","state":"PUBLIC","assigner":"info@cert.vde.com","published_at":"2020-12-17 23:15:00","updated_at":"2020-12-21 14:16:00"},"problem_types":["CWE-909"],"metrics":[],"references":[{"url":"https://cert.vde.com/en-us/advisories/vde-2020-046","name":"https://cert.vde.com/en-us/advisories/vde-2020-046","refsource":"CONFIRM","tags":["Third Party Advisory"],"title":"PHOENIX CONTACT: mGuard products missing initialization of resource — English (USA)","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-12523","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12523","name":"NVD vulnerability 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"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-12523","qid":"591336","title":"Phoenix Contact mGuard Missing Initialization of Resource Vulnerability (VDE-2020-046)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","generator":{"engine":"Vulnogram 0.0.9"},"CVE_data_meta":{"ID":"CVE-2020-12523","ASSIGNER":"info@cert.vde.com","DATE_PUBLIC":"2020-12-17T09:00:00.000Z","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","AKA":"","STATE":"PUBLIC"},"source":{"defect":["VDE-2020-046"],"advisory":"VDE-2020-046","discovery":"EXTERNAL"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Phoenix Contact","product":{"product_data":[{"product_name":"TC MGUARD RS4000 4G VZW VPN (1010461)","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}},{"product_name":"TC MGUARD RS4000 4G ATT VPN (1010463)","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}},{"product_name":"FL MGUARD RS4004 TX/DTX (2701876)","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}},{"product_name":"FL MGUARD RS4004 TX/DTX VPN (2701877)","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}},{"product_name":"TC MGUARD RS4000 3G VPN (2903440)","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}},{"product_name":"TC MGUARD RS4000 4G VPN (2903586)","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}}]}},{"vendor_name":"Innominate","product":{"product_data":[{"product_name":"Innominate mGuard rs4000 4TX/TX","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}},{"product_name":"Innominate mGuard rs4000 4TX/TX VPN","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}},{"product_name":"Innominate mGuard rs4000 4TX/3G/TX VPN","version":{"version_data":[{"version_name":"","version_affected":"<","version_value":"8.8.3","platform":""}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-909 Missing Initialization of Resource"}]}]},"description":{"description_data":[{"lang":"eng","value":"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"}]},"references":{"reference_data":[{"refsource":"CONFIRM","url":"https://cert.vde.com/en-us/advisories/vde-2020-046","name":"https://cert.vde.com/en-us/advisories/vde-2020-046"}]},"configuration":[],"impact":{"cvss":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"LOW","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","baseScore":5.4,"baseSeverity":"MEDIUM"}},"exploit":[],"work_around":[{"lang":"eng","value":"Instead of deactivating by configuration, network cables should be detached from affected switch ports."}],"solution":[{"lang":"eng","value":"PHOENIX CONTACT recommends all mGuard users to upgrade to the firmware version 8.8.3."}],"credit":[{"lang":"eng","value":"Discovered by SMST Designers & Constructors B.V., Phoenix Contact reported to CERT@VDE"}]},"nvd":{"publishedDate":"2020-12-17 23:15:00","lastModifiedDate":"2020-12-21 14:16:00","problem_types":["CWE-909"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.2},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":6.4},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_vzw_vpn_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"8.8.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:tc_mguard_rs4000_4g_vzw_vpn:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_att_vpn_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"8.8.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:tc_mguard_rs4000_4g_att_vpn:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:fl_mguard_rs4004_tx\\/dtx_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"8.8.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:fl_mguard_rs4004_tx\\/dtx:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:fl_mguard_rs4004_tx\\/dtx_vpn_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"8.8.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:fl_mguard_rs4004_tx\\/dtx_vpn:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_3g_vpn_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:tc_mguard_rs4000_3g_vpn:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_vpn_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"8.8.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:tc_mguard_rs4000_4g_vpn:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:innominate_mguard_rs4000_4tx\\/tx_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"8.8.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:innominate_mguard_rs4000_4tx\\/tx:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:innominate_mguard_rs4000_4tx\\/tx_vpn_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"8.8.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:innominate_mguard_rs4000_4tx\\/tx_vpn:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:phoenixcontact:innominate_mguard_rs4000_4tx\\/3g\\/tx_vpn_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"8.8.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:phoenixcontact:innominate_mguard_rs4000_4tx\\/3g\\/tx_vpn:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"12523","Ordinal":"173688","Title":"CVE-2020-12523","CVE":"CVE-2020-12523","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"12523","Ordinal":"1","NoteData":"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","Type":"Description","Title":null},{"CveYear":"2020","CveId":"12523","Ordinal":"2","NoteData":"2020-12-17","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"12523","Ordinal":"3","NoteData":"2020-12-17","Type":"Other","Title":"Modified"}]}}}