CVE-2019-9648
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.
Does this matter?
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.
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.
- CVSS 3.0
- 5.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 14.33% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · first 13 March 2019
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- coreftp/core ftp
- Source
- cve@mitre.org
EPSS moved from 13.3% on 21 September 2026 to 14.3% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/154204/CoreFTP-Server-SIZE-Directory-Traversal.html
- http://seclists.org/fulldisclosure/2019/Aug/21
- http://www.coreftp.com/forums/viewtopic.php?f=15&t=4022509Product, Vendor Advisory
- http://www.securityfocus.com/bid/107446Third Party Advisory, VDB Entry
- https://seclists.org/fulldisclosure/2019/Mar/23Exploit, Mailing List, Third Party Advisory
- https://www.exploit-db.com/exploits/46535Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/154204/CoreFTP-Server-SIZE-Directory-Traversal.html
- http://seclists.org/fulldisclosure/2019/Aug/21
- http://www.coreftp.com/forums/viewtopic.php?f=15&t=4022509Product, Vendor Advisory
- http://www.securityfocus.com/bid/107446Third Party Advisory, VDB Entry
- https://seclists.org/fulldisclosure/2019/Mar/23Exploit, Mailing List, Third Party Advisory
- https://www.exploit-db.com/exploits/46535Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.