{"id":"CVE-2023-2673","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-2673","generatedAt":"2026-10-23T13:04:41.390Z","title":"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.","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.","published":"2023-06-13T07:15:46.000Z","lastModified":"2026-06-17T05:53:10.000Z","status":"Modified","sourceIdentifier":"info@cert.vde.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-1287"],"affected":["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"],"epss":{"score":0.0062,"percentile":0.49052,"date":"2026-10-22","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.62%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://cert.vde.com/en/advisories/VDE-2023-010/","tags":["Mitigation","Third Party Advisory"],"source":"info@cert.vde.com"},{"url":"https://cert.vde.com/en/advisories/VDE-2023-010/","tags":["Mitigation","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-2673","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}