What’s Vulnerable › Vulnerabilities

CVE-2010-20045: FileWrangler <= 5.30 Stack Buffer Overflow

• Severity: high (CVSS 8.5 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-20 · updated 2026-06-16
• Weakness: CWE-121

Description

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.

Affected products

• CursorArts FileWrangler: through 5.30

References

• https://cursorarts.com/ca_fw.html
• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/filewrangler_list_reply.rb
• 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

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