{"cve":"CVE-2019-13555","nvd":{"published":"2019-11-13T23:15:11.327","modified":"2026-06-17T02:16:58.293","status":"Modified","description":"In Mitsubishi Electric MELSEC-Q Series Q03/04/06/13/26UDVCPU: serial number 21081 and prior, Q04/06/13/26UDPVCPU: serial number 21081 and prior, and Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: serial number 21081 and prior, MELSEC-L Series L02/06/26CPU, L26CPU-BT: serial number 21101 and prior, L02/06/26CPU-P, L26CPU-PBT: serial number 21101 and prior, and L02/06/26CPU-CM, L26CPU-BT-CM: serial number 21101 and prior, a remote attacker can cause the FTP service to enter a denial-of-service condition dependent on the timing at which a remote attacker connects to the FTP server on the above CPU modules.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9},"cwes":["CWE-400"],"references":["https://www.us-cert.gov/ics/advisories/icsa-19-311-01","https://www.us-cert.gov/ics/advisories/icsa-19-311-01"],"products":["mitsubishielectric:l02\\/06\\/26cpu-cm_firmware","mitsubishielectric:l02\\/06\\/26cpu-p_firmware","mitsubishielectric:l02\\/06\\/26cpu_firmware","mitsubishielectric:l26cpu-bt-cm_firmware","mitsubishielectric:l26cpu-bt_firmware","mitsubishielectric:l26cpu-pbt_firmware","mitsubishielectric:q03\\/04\\/06\\/13\\/26udvcpu_firmware","mitsubishielectric:q03udecpu_firmware","mitsubishielectric:q04\\/06\\/10\\/13\\/20\\/26\\/50\\/100udehcpu_firmware","mitsubishielectric:q04\\/06\\/13\\/26udpvcpu_firmware"],"source":"nvd","synced_at":"2026-10-19T20:59:25.448946135+00:00"},"epss":{"cve":"CVE-2019-13555","score":0.01521,"percentile":0.74604,"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."]}