What is CVE-2019-25654?

CVE-2019-25654 is a high-severity vulnerability in Coreftp Core Ftp/sftp Server, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2026-03-30.

How severe is CVE-2019-25654?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Coreftp Core Ftp/sftp Server

CVE-2019-25654

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…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (22.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Coreftp Core Ftp/sftp Server — versions v2-Build 673

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

ExploitDB-46371 (exploit)
Official Product Homepage (product)
Product Reference (product)
VulnCheck Advisory: Core FTP/SFTP Server 1.2 Denial of Service via Buffer Overflow (third-party-advisory)

Frequently asked questions

What is CVE-2019-25654?: CVE-2019-25654 is a high-severity vulnerability in Coreftp Core Ftp/sftp Server, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2026-03-30.
How severe is CVE-2019-25654?: High severity. CVSS v3 base score is 7.5 out of 10.