CVE-2019-25654

Core FTP/SFTP Server 1.2 Denial of Service via Buffer Overflow

HIGH 8.7EPSS 0.7%

Core FTP/SFTP Server 1.2 contains a buffer overflow vulnerability that allows attackers to crash the service by supplying an excessively long string in the User domain field. Attackers can paste a malicious payload containing 7000 bytes of data into the domain configuration to trigger an application crash and deny service.

Affected: Coreftp · Core FTP/SFTP Server
CVSS v4.0 VULNCHECK: 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 VULNCHECK: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.69% chance of exploitation in the next 30 days, 52nd percentile
Published: 2026-03-30

Proof-of-concept exploits (1)

https://www.exploit-db.com/exploits/46371

Security advisories

https://www.vulncheck.com/advisories/core-ftp-sftp-server-denial-of-service-via-buffer-ov…
http://www.coreftp.com
http://www.coreftp.com/server/download/archive/CoreFTPServer589.42.exe

References

CVE Record
NVD entry