{"cve":"CVE-2023-4625","nvd":{"published":"2023-11-06T05:15:15.187","modified":"2026-06-17T06:38:14.737","status":"Modified","description":"Improper Restriction of Excessive Authentication Attempts vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F/iQ-R Series CPU modules Web server function allows a remote unauthenticated attacker to prevent legitimate users from logging into the Web server function for a certain period after the attacker has attempted to log in illegally by continuously attempting unauthorized login to the Web server function. The impact of this vulnerability will persist while the attacker continues to attempt unauthorized login.","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-307"],"references":["https://jvn.jp/vu/JVNVU94620134","https://www.cisa.gov/news-events/ics-advisories/icsa-23-306-02","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-014_en.pdf","https://jvn.jp/vu/JVNVU94620134","https://www.cisa.gov/news-events/ics-advisories/icsa-23-306-02"],"products":["mitsubishielectric:fx5s-30mr\\/es_firmware","mitsubishielectric:fx5s-30mt\\/es_firmware","mitsubishielectric:fx5s-30mt\\/ess_firmware","mitsubishielectric:fx5s-40mr\\/es_firmware","mitsubishielectric:fx5s-40mt\\/es_firmware","mitsubishielectric:fx5s-40mt\\/ess_firmware","mitsubishielectric:fx5s-60mr\\/es_firmware","mitsubishielectric:fx5s-60mt\\/es_firmware","mitsubishielectric:fx5s-60mt\\/ess_firmware","mitsubishielectric:fx5s-80mr\\/es_firmware","mitsubishielectric:fx5s-80mt\\/es_firmware","mitsubishielectric:fx5s-80mt\\/ess_firmware","mitsubishielectric:fx5u-32mr\\/ds_firmware","mitsubishielectric:fx5u-32mr\\/es_firmware","mitsubishielectric:fx5u-32mt\\/ds_firmware","mitsubishielectric:fx5u-32mt\\/dss_firmware","mitsubishielectric:fx5u-32mt\\/es_firmware","mitsubishielectric:fx5u-32mt\\/ess_firmware","mitsubishielectric:fx5u-64mr\\/ds_firmware","mitsubishielectric:fx5u-64mr\\/es_firmware","mitsubishielectric:fx5u-64mt\\/ds_firmware","mitsubishielectric:fx5u-64mt\\/dss_firmware","mitsubishielectric:fx5u-64mt\\/es_firmware","mitsubishielectric:fx5u-64mt\\/ess_firmware","mitsubishielectric:fx5u-80mr\\/ds_firmware","mitsubishielectric:fx5u-80mr\\/es_firmware","mitsubishielectric:fx5u-80mt\\/ds_firmware","mitsubishielectric:fx5u-80mt\\/dss_firmware","mitsubishielectric:fx5u-80mt\\/es_firmware","mitsubishielectric:fx5u-80mt\\/ess_firmware","mitsubishielectric:fx5uc-32mr\\/ds-ts_firmware","mitsubishielectric:fx5uc-32mt\\/d_firmware","mitsubishielectric:fx5uc-32mt\\/ds-ts_firmware","mitsubishielectric:fx5uc-32mt\\/dss-ts_firmware","mitsubishielectric:fx5uc-32mt\\/dss_firmware","mitsubishielectric:fx5uc-64mt\\/d_firmware","mitsubishielectric:fx5uc-64mt\\/dss_firmware","mitsubishielectric:fx5uc-96mt\\/d_firmware","mitsubishielectric:fx5uc-96mt\\/dss_firmware","mitsubishielectric:fx5uj-24mr\\/ds_firmware","mitsubishielectric:fx5uj-24mr\\/es-a_firmware","mitsubishielectric:fx5uj-24mr\\/es_firmware","mitsubishielectric:fx5uj-24mt\\/ds_firmware","mitsubishielectric:fx5uj-24mt\\/dss_firmware","mitsubishielectric:fx5uj-24mt\\/es-a_firmware","mitsubishielectric:fx5uj-24mt\\/es_firmware","mitsubishielectric:fx5uj-24mt\\/ess_firmware","mitsubishielectric:fx5uj-40mr\\/ds_firmware","mitsubishielectric:fx5uj-40mr\\/es-a_firmware","mitsubishielectric:fx5uj-40mr\\/es_firmware"],"source":"nvd","synced_at":"2026-10-19T21:40:11.519948003+00:00"},"epss":{"cve":"CVE-2023-4625","score":0.00942,"percentile":0.61022,"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."]}