{"cve":"CVE-2023-2673","nvd":{"published":"2023-06-13T07:15:46.460","modified":"2026-06-17T05:53:09.710","status":"Modified","description":"Improper Input Validation vulnerability in PHOENIX CONTACT FL/TC MGUARD Family in multiple versions may allow UDP packets to bypass the filter rules and access the solely connected device behind the MGUARD which can be used for flooding attacks.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-1287"],"references":["https://cert.vde.com/en/advisories/VDE-2023-010/","https://cert.vde.com/en/advisories/VDE-2023-010/"],"products":["phoenixcontact:fl_mguard_2102_firmware","phoenixcontact:fl_mguard_4102_pci_firmware","phoenixcontact:fl_mguard_4102_pcie_firmware","phoenixcontact:fl_mguard_4302_firmware","phoenixcontact:fl_mguard_centerport_firmware","phoenixcontact:fl_mguard_centerport_vpn-1000_firmware","phoenixcontact:fl_mguard_core_tx_firmware","phoenixcontact:fl_mguard_core_tx_vpn_firmware","phoenixcontact:fl_mguard_delta_tx\\/tx_firmware","phoenixcontact:fl_mguard_delta_tx\\/tx_vpn_firmware","phoenixcontact:fl_mguard_gt\\/gt_firmware","phoenixcontact:fl_mguard_gt\\/gt_vpn_firmware","phoenixcontact:fl_mguard_pci4000_firmware","phoenixcontact:fl_mguard_pci4000_vpn_firmware","phoenixcontact:fl_mguard_pcie4000_firmware","phoenixcontact:fl_mguard_pcie4000_vpn_firmware","phoenixcontact:fl_mguard_rs2000_tx\\/tx-b_firmware","phoenixcontact:fl_mguard_rs2000_tx\\/tx_vpn_firmware","phoenixcontact:fl_mguard_rs2005_tx_vpn_firmware","phoenixcontact:fl_mguard_rs4000_tx\\/tx-m_firmware","phoenixcontact:fl_mguard_rs4000_tx\\/tx-p_firmware","phoenixcontact:fl_mguard_rs4000_tx\\/tx_vpn_firmware","phoenixcontact:fl_mguard_rs4004_tx\\/dtx_firmware","phoenixcontact:fl_mguard_rs4004_tx\\/dtx_vpn_firmware","phoenixcontact:fl_mguard_smart2_firmware","phoenixcontact:fl_mguard_smart2_vpn_firmware"],"source":"nvd","synced_at":"2026-10-19T21:38:24.161619714+00:00"},"epss":{"cve":"CVE-2023-2673","score":0.0062,"percentile":0.49737,"date":"2026-11-01"},"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."]}