{"id":"CVE-2023-2673","aliases":["EUVD-2023-34137","GHSA-fw3q-vjp3-89w5"],"status":"published","title":"PHOENIX CONTACT: FL/TC MGUARD prone to Improper Input Validation","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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0062,"percentile":0.50067,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1287","CWE-20"],"published":"2023-06-13T06:16:18Z","modified":"2026-06-17T05:53:09Z","products":[{"vendor":"phoenix contact","product":"fl mguard 2102"},{"vendor":"phoenix contact","product":"fl mguard 4102 pci"},{"vendor":"phoenix 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Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2673"},{"url":"https://cert.vde.com/en/advisories/VDE-2023-010"},{"url":"https://github.com/advisories/GHSA-fw3q-vjp3-89w5"}],"sources":{"cve":[{"id":"CVE-2023-2673","title":"PHOENIX CONTACT: FL/TC MGUARD prone to Improper Input Validation","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.","status":"published","published":"2023-06-13T06:16:18.557Z","modified":"2025-01-03T01:57:54.039Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-1287"],"updated_at":"2026-11-02T14:35:23.645864Z"}],"euvd":[{"id":"EUVD-2023-34137","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.","status":"published","published":"2023-06-13T06:16:18Z","modified":"2025-01-03T01:57:54Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T00:04:27.013318Z"}],"ghsa":[{"id":"GHSA-fw3q-vjp3-89w5","title":"Improper Input Validation vulnerability in PHOENIX CONTACT FL/TC MGUARD Family in multiple...","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.","status":"published","published":"2023-06-13T09:30:19Z","modified":"2024-10-02T06:31:32Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-20","CWE-1287"],"updated_at":"2026-11-02T14:58:23.554604Z"}],"nvd":[{"id":"CVE-2023-2673","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.","status":"published","published":"2023-06-13T07:15:46.46Z","modified":"2026-06-17T05:53:09.71Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-1287"],"updated_at":"2026-11-02T14:08:06.335469Z"}]}}