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.
History

Thu, 21 Aug 2025 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Leapware
Leapware leapftp
Vendors & Products Leapware
Leapware leapftp

Wed, 20 Aug 2025 15:45:00 +0000

Type Values Removed Values Added
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.
Title LeapFTP < 3.1.x Stack Buffer Overflow
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 9.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2025-08-20T15:36:11.493Z

Updated: 2025-08-20T15:36:11.493Z

Reserved: 2025-08-19T16:00:37.427Z

Link: CVE-2010-20049

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-08-20T16:15:33.773

Modified: 2025-08-20T16:15:33.773

Link: CVE-2010-20049

cve-icon Redhat

No data.