CVE-2010-20045

FileWrangler <= 5.30 suffers from a stack-based buffer overflow vulnerability when parsing directory listings from an FTP server. A malicious server can send an overlong folder name in response to a LIST command, triggering memory corruption during client-side rendering. Exploitation requires passive user interaction—simply connecting to the server—without further input. Successful exploitation may lead to arbitrary code execution.

Score

CVSS 4.0 8.5 High

Status

Deferred - disclosure@vulncheck.com

Published

2025-08-20

Last modified

2026-05-15

Weaknesses

CWE-121

Affected products

• Filewrangler (Cursorarts)

References

• https://cursorarts.com/ca_fw.html
• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/filewrangler_list_rep…
• https://web.archive.org/web/20111016194057/https://www.corelan.be/index.php/2010/10/12/death-of-an-ftp-client/
• https://www.exploit-db.com/exploits/16721
• https://www.vulncheck.com/advisories/filewrangler-stack-buffer-overflow