CVE-2019-25681 HIGH

CVE-2019-25681: Xlight FTP Server 3.9.1 SEH Overwrite Buffer Overflow

Vendor Xlightftpd
Product Xlight
Weakness CWE-787
Published April 5, 2026
Last update April 6, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 5, 2026 CVE published
April 6, 2026 Record updated