CVE-2019-25681

HIGH EPSS 11.0%
Published Apr 5, 20262mo ago · Modified Jun 17, 20261w ago
8.6 CVSS 4.0
High
Find Similar
Published Apr 5, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.6
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
11.0% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
xlightftpdxlight_ftp_server3.9.1any

References 4

  • exploit-db.com https://www.exploit-db.com/exploits/46458
    ExploitVDB Entry
  • vulncheck.com https://www.vulncheck.com/advisories/xlight-ftp-server-seh-overwrite-buffer-overflow
    Third Party Advisory
  • xlightftpd.com https://www.xlightftpd.com/download/xlight.zip
    Product
  • xlightftpd.com https://www.xlightftpd.com/index.htm
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.