VULNERABILITY INTELLIGENCE
CVE-2010-20049
EPSS probability1.19%
CISA KEVNot currently listed
Published2025-08-20
Last modified2026-06-16
Description
LeapFTP < 3.1.x contains a stack-based buffer overflow vulnerability in its FTP client parser. When the client receives a directory listing containing a filename longer than 528 bytes, the application fails to properly bound-check the input and overwrites the Structured Exception Handler (SEH) chain. This allows an attacker operating a malicious FTP server to execute arbitrary code on the victim’s machine when the file is listed or downloaded.
Weakness classification
- disclosure@vulncheck.com: CWE-121