{"id":"CVE-2019-9648","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-9648","generatedAt":"2026-10-27T21:15:52.085Z","title":"A directory traversal vulnerability exists using the SIZE command along with a \\..\\..\\ substring, allowing an attacker to enumerate file existence based on the returned information.","description":"An issue was discovered in the SFTP Server component in Core FTP 2.0 Build 674. A directory traversal vulnerability exists using the SIZE command along with a \\..\\..\\ substring, allowing an attacker to enumerate file existence based on the returned information.","published":"2019-03-22T19:29:00.000Z","lastModified":"2026-06-17T02:44:08.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-22"],"affected":["coreftp/core ftp"],"epss":{"score":0.1433,"percentile":0.96585,"date":"2026-10-26","history":[{"date":"2026-09-21","score":0.13265,"percentile":0.96271},{"date":"2026-09-22","score":0.1433,"percentile":0.96445}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2019-03-13","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46535,"kind":"exploit","title":"Core FTP Server FTP / SFTP Server v2 Build 674 - 'SIZE' Directory Traversal","url":"https://www.exploit-db.com/exploits/46535","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/46535.txt","file":"exploits/windows/dos/46535.txt","published":"2019-03-13","added":"2019-03-13","updated":"2019-04-30","author":"Kevin Randall","type":"dos","platform":"windows","port":21,"verified":false,"codes":["CVE-2019-9648"],"tags":"Traversal","aliases":null,"applicationUrl":"http://www.exploit-db.comCoreFTPServer653.exe","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 14.3%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/154204/CoreFTP-Server-SIZE-Directory-Traversal.html","source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2019/Aug/21","source":"cve@mitre.org"},{"url":"http://www.coreftp.com/forums/viewtopic.php?f=15&t=4022509","tags":["Product","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/107446","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://seclists.org/fulldisclosure/2019/Mar/23","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/46535","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/154204/CoreFTP-Server-SIZE-Directory-Traversal.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2019/Aug/21","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.coreftp.com/forums/viewtopic.php?f=15&t=4022509","tags":["Product","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/107446","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/fulldisclosure/2019/Mar/23","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/46535","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-9648","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."}