What is CVE-2018-25254?

CVE-2018-25254 is a critical-severity vulnerability in Nico-ftp, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-04-04.

How severe is CVE-2018-25254?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Nico-ftp

CVE-2018-25254

NICO-FTP 3.0.1.19 contains a structured exception handler buffer overflow vulnerability that allows remote attackers to execute arbitrary code by sending crafted FTP commands. Attackers can connect to the FTP service and send oversized dat…

Vulnerability class: Buffer Overflow

EPSS: 0.004 (63.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Nico-ftp — versions 3.0.1.19

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

ExploitDB-45442 (exploit)
Product Reference (product)
VulnCheck Advisory: NICO-FTP 3.0.1.19 Buffer Overflow SEH (third-party-advisory)

Frequently asked questions

What is CVE-2018-25254?: CVE-2018-25254 is a critical-severity vulnerability in Nico-ftp, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-04-04.
How severe is CVE-2018-25254?: Critical severity. CVSS v3 base score is 9.8 out of 10.