{"id":"CVE-2018-20658","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-20658","generatedAt":"2026-10-28T21:21:35.775Z","title":"The server in Core FTP 2.0 build 653 on 32-bit platforms allows remote attackers to cause a denial of service (daemon crash) via a crafted XRMD command.","description":"The server in Core FTP 2.0 build 653 on 32-bit platforms allows remote attackers to cause a denial of service (daemon crash) via a crafted XRMD command.","published":"2019-01-02T15:29:00.000Z","lastModified":"2026-06-17T01:53:17.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-20"],"affected":["coreftp/core ftp"],"epss":{"score":0.08493,"percentile":0.95007,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.07038,"percentile":0.93981},{"date":"2026-09-22","score":0.08493,"percentile":0.94784}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2018-07-26","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":45091,"kind":"exploit","title":"Core FTP 2.0 - 'XRMD' Denial of Service (PoC)","url":"https://www.exploit-db.com/exploits/45091","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/45091.py","file":"exploits/windows/dos/45091.py","published":"2018-07-26","added":"2018-07-26","updated":"2019-01-07","author":"Erik David Martin","type":"dos","platform":"windows","port":null,"verified":false,"codes":["CVE-2018-20658"],"tags":"Denial of Service (DoS)","aliases":null,"applicationUrl":"http://www.exploit-db.comCoreFTPServer.exe","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 8.5%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://coreftp.com/forums/viewtopic.php?f=15&t=4022509","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/45091","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://coreftp.com/forums/viewtopic.php?f=15&t=4022509","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/45091","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20658","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."}