{"cve":"CVE-2023-4562","nvd":{"published":"2023-10-13T02:15:09.917","modified":"2026-06-17T06:38:05.973","status":"Modified","description":"Improper Authentication vulnerability in Mitsubishi Electric Corporation MELSEC-F Series main modules allows a remote unauthenticated attacker to obtain sequence programs from the product or write malicious sequence programs or improper data in the product without authentication by sending illegitimate messages.","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:H/A:N","score":9.1},"cwes":["CWE-287"],"references":["https://jvn.jp/vu/JVNVU90509290/","https://www.cisa.gov/news-events/ics-advisories/icsa-23-285-13","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-012_en.pdf","https://jvn.jp/vu/JVNVU90509290/","https://www.cisa.gov/news-events/ics-advisories/icsa-23-285-13"],"products":["mitsubishielectric:fx3g-14_mr\\/ds_firmware","mitsubishielectric:fx3g-14_mr\\/es_firmware","mitsubishielectric:fx3g-14_mt\\/ds_firmware","mitsubishielectric:fx3g-14_mt\\/dss_firmware","mitsubishielectric:fx3g-14_mt\\/es_firmware","mitsubishielectric:fx3g-14_mt\\/ess_firmware","mitsubishielectric:fx3g-14mr\\/ds_firmware","mitsubishielectric:fx3g-14mr\\/es-a_firmware","mitsubishielectric:fx3g-14mr\\/es_firmware","mitsubishielectric:fx3g-14mt\\/ds_firmware","mitsubishielectric:fx3g-14mt\\/dss_firmware","mitsubishielectric:fx3g-14mt\\/es-a_firmware","mitsubishielectric:fx3g-14mt\\/es_firmware","mitsubishielectric:fx3g-14mt\\/ess_firmware","mitsubishielectric:fx3g-232adp\\(-mb\\)_firmware","mitsubishielectric:fx3g-24_mr\\/ds_firmware","mitsubishielectric:fx3g-24_mr\\/es_firmware","mitsubishielectric:fx3g-24_mt\\/ds_firmware","mitsubishielectric:fx3g-24_mt\\/dss_firmware","mitsubishielectric:fx3g-24_mt\\/es_firmware","mitsubishielectric:fx3g-24_mt\\/ess_firmware","mitsubishielectric:fx3g-24mr\\/ds_firmware","mitsubishielectric:fx3g-24mr\\/es-a_firmware","mitsubishielectric:fx3g-24mr\\/es_firmware","mitsubishielectric:fx3g-24mt\\/ds_firmware","mitsubishielectric:fx3g-24mt\\/dss_firmware","mitsubishielectric:fx3g-24mt\\/es-a_firmware","mitsubishielectric:fx3g-24mt\\/es_firmware","mitsubishielectric:fx3g-24mt\\/ess_firmware","mitsubishielectric:fx3g-32_mt\\/dss_firmware","mitsubishielectric:fx3g-3a-adp_firmware","mitsubishielectric:fx3g-40_mr\\/ds_firmware","mitsubishielectric:fx3g-40_mr\\/es_firmware","mitsubishielectric:fx3g-40_mt\\/ds_firmware","mitsubishielectric:fx3g-40_mt\\/dss_firmware","mitsubishielectric:fx3g-40_mt\\/es_firmware","mitsubishielectric:fx3g-40_mt\\/ess_firmware","mitsubishielectric:fx3g-40mr\\/ds_firmware","mitsubishielectric:fx3g-40mr\\/es-a_firmware","mitsubishielectric:fx3g-40mr\\/es_firmware","mitsubishielectric:fx3g-40mt\\/ds_firmware","mitsubishielectric:fx3g-40mt\\/dss_firmware","mitsubishielectric:fx3g-40mt\\/es-a_firmware","mitsubishielectric:fx3g-40mt\\/es_firmware","mitsubishielectric:fx3g-40mt\\/ess_firmware","mitsubishielectric:fx3g-485adp\\(-mb\\)_firmware","mitsubishielectric:fx3g-4ad-adp_firmware","mitsubishielectric:fx3g-4ad-pt-adp_firmware","mitsubishielectric:fx3g-4ad-ptw-adp_firmware","mitsubishielectric:fx3g-4ad-tc-adp_firmware"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-4562","score":0.01214,"percentile":0.68532,"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."]}