What is CVE-2019-25681?

CVE-2019-25681 is a high-severity vulnerability in Xlightftpd Xlight, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-04-05.

How severe is CVE-2019-25681?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Xlightftpd Xlight

CVE-2019-25681

Xlight FTP Server 3.9.1 contains a structured exception handler (SEH) overwrite vulnerability that allows local attackers to crash the application and overwrite SEH pointers by supplying a crafted buffer string. Attackers can inject a 428-…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (5.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Xlightftpd Xlight — versions 3.9.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

ExploitDB-46458 (exploit)
Official Product Homepage (product)
Product Reference (product)
VulnCheck Advisory: Xlight FTP Server 3.9.1 SEH Overwrite Buffer Overflow (third-party-advisory)

Frequently asked questions

What is CVE-2019-25681?: CVE-2019-25681 is a high-severity vulnerability in Xlightftpd Xlight, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-04-05.
How severe is CVE-2019-25681?: High severity. CVSS v3 base score is 8.4 out of 10.