CVE-2010-20122 CRITICAL

CVE-2010-20122: Xftp FTP Client <= 3.0 PWD Response Buffer Overflow

Vendor Netsarang Computer, Inc.
Product Xftp FTP Client
Weakness CWE-121
Published August 21, 2025
Last update May 15, 2026

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 21, 2025 CVE published
May 15, 2026 Record updated

Related vulnerabilities

04Related CVE