{"id":"CVE-2019-13555","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-13555","generatedAt":"2026-10-29T00:42:16.457Z","title":"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…","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.","published":"2019-11-13T23:15:11.000Z","lastModified":"2026-06-17T02:16:58.000Z","status":"Modified","sourceIdentifier":"ics-cert@hq.dhs.gov","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400"],"affected":["mitsubishielectric/q03\\/04\\/06\\/13\\/26udvcpu firmware","mitsubishielectric/q04\\/06\\/13\\/26udpvcpu firmware","mitsubishielectric/q03udecpu firmware","mitsubishielectric/q04\\/06\\/10\\/13\\/20\\/26\\/50\\/100udehcpu firmware","mitsubishielectric/l02\\/06\\/26cpu firmware","mitsubishielectric/l26cpu-bt firmware","mitsubishielectric/l02\\/06\\/26cpu-p firmware","mitsubishielectric/l26cpu-pbt firmware","mitsubishielectric/l02\\/06\\/26cpu-cm firmware","mitsubishielectric/l26cpu-bt-cm firmware"],"epss":{"score":0.01521,"percentile":0.74462,"date":"2026-10-27","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 (1.52%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.us-cert.gov/ics/advisories/icsa-19-311-01","tags":["Third Party Advisory","US Government Resource"],"source":"ics-cert@hq.dhs.gov"},{"url":"https://www.us-cert.gov/ics/advisories/icsa-19-311-01","tags":["Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-13555","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."}