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Description

Xftp FTP Client version up to and including 3.0 (build 0238) contain a stack-based buffer overflow vulnerability triggered by a maliciously crafted PWD response from an FTP server. When the client connects to a server and receives an overly long directory string in response to the PWD command, the client fails to properly validate the length of the input before copying it into a fixed-size buffer. This results in memory corruption and allows remote attackers to execute arbitrary code on the client system.

PUBLISHED Reserved 2025-08-20 | Published 2025-08-21 | Updated 2025-08-21 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-121 Stack-based Buffer Overflow

Product status

Default status
unknown

*
affected

Credits

zombiefx finder

References

raw.githubusercontent.com/.../windows/ftp/xftp_client_pwd.rb exploit

www.exploit-db.com/exploits/12332 exploit

www.exploit-db.com/exploits/16739 exploit

web.archive.org/...www.netsarang.com/download/down_xft3.html product

www.vulncheck.com/...ftp-client-pwd-response-buffer-overflow third-party-advisory

cve.org (CVE-2010-20122)

nvd.nist.gov (CVE-2010-20122)

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