{"cve":"CVE-2020-12523","nvd":{"published":"2020-12-17T23:15:13.263","modified":"2026-06-17T02:51:58.110","status":"Modified","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","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":9.1},"cwes":["CWE-909"],"references":["https://cert.vde.com/en-us/advisories/vde-2020-046","https://cert.vde.com/en-us/advisories/vde-2020-046"],"products":["phoenixcontact:fl_mguard_rs4004_tx\\/dtx_firmware","phoenixcontact:fl_mguard_rs4004_tx\\/dtx_vpn_firmware","phoenixcontact:innominate_mguard_rs4000_4tx\\/3g\\/tx_vpn_firmware","phoenixcontact:innominate_mguard_rs4000_4tx\\/tx_firmware","phoenixcontact:innominate_mguard_rs4000_4tx\\/tx_vpn_firmware","phoenixcontact:tc_mguard_rs4000_3g_vpn_firmware","phoenixcontact:tc_mguard_rs4000_4g_att_vpn_firmware","phoenixcontact:tc_mguard_rs4000_4g_vpn_firmware","phoenixcontact:tc_mguard_rs4000_4g_vzw_vpn_firmware"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-12523","score":0.00899,"percentile":0.59642,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}