CVE-2025-34107: Stack Overflow

Description

A buffer overflow vulnerability exists in the WinaXe FTP Client version 7.7 within the FTP banner parsing functionality, WCMDPA10.dll. When the client connects to a remote FTP server and receives an overly long '220 Server Ready' response, the vulnerable component responsible for parsing the banner overflows a stack buffer, leading to arbitrary code execution under the context of the user.

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Weakness Type (CWE)

CWE-121 CWE-121

References

Other References

http://hyp3rlinx.altervista.org/advisories/WINAXE-FTP-CLIENT-REMOTE-BUFFER-OVERFLOW.txt https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/winaxe_server_ready.rb https://www.exploit-db.com/exploits/40767 https://www.vulncheck.com/advisories/wina-xe-ftp-client-remote-buffer-overflow

Frequently Asked Questions

What is CVE-2025-34107? +

A buffer overflow vulnerability exists in the WinaXe FTP Client version 7.7 within the FTP banner parsing functionality, WCMDPA10.dll. When the client connects to a remote FTP server and receives an overly long '220 Server Ready' response, the vulnerable component responsible for parsing the banner overflows a stack buffer, leading to arbitrary code execution under the context of the user.

How do I check if I'm vulnerable to CVE-2025-34107? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-34107