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Description

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.

PUBLISHED Reserved 2026-03-30 | Published 2026-03-30 | Updated 2026-03-30 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Out-of-bounds Write

Product status

v2-Build 673
affected

Credits

Victor Mondragón finder

References

www.exploit-db.com/exploits/46371 (ExploitDB-46371) exploit

www.coreftp.com/ (Official Product Homepage) product

www.coreftp.com/.../download/archive/CoreFTPServer589.42.exe (Product Reference) product

www.vulncheck.com/...r-denial-of-service-via-buffer-overflow (VulnCheck Advisory: Core FTP/SFTP Server 1.2 Denial of Service via Buffer Overflow) third-party-advisory

cve.org (CVE-2019-25654)

nvd.nist.gov (CVE-2019-25654)

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