CVE-2019-25681

HIGH 8.4

Xlight FTP Server 3.9.1 SEH Overwrite Buffer Overflow

CVSS Score

8.4

EPSS Score

0.0%

EPSS Percentile

2th

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-byte payload through the program execution field in virtual server configuration to trigger a buffer overflow that corrupts the SEH chain and enables potential code execution.

CWE	CWE-787
Vendor	xlightftpd
Product	xlight
Published	Apr 5, 2026
Last Updated	Apr 6, 2026

Stay Ahead of the Next One

Get instant alerts for xlightftpd xlight

Be the first to know when new high vulnerabilities affecting xlightftpd xlight are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Xlightftpd / Xlight

3.9.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/46458 xlightftpd.com: https://www.xlightftpd.com/index.htm xlightftpd.com: https://www.xlightftpd.com/download/xlight.zip vulncheck.com: https://www.vulncheck.com/advisories/xlight-ftp-server-seh-overwrite-buffer-overflow

Credits

Logan Whitmire