CVE-2010-20049
LeapFTP < 3.1.x Stack Buffer Overflow
CRITICAL 9.3EPSS 1.1%
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.
- Affected
- LeapWare · LeapFTP
- CVSS v4.0 VULNCHECK
- 9.3 CRITICAL
CVSS:4.0/AV:N/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 - EPSS
- 1.14% chance of exploitation in the next 30 days, 66th percentile
- Published
- 2025-08-20
- Updated
- 2026-05-15
Proof-of-concept exploits (3)
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/win…
- https://www.exploit-db.com/exploits/16704
- https://web.archive.org/web/20111016194057/https://www.corelan.be/index.php/2010/10/12/de…