CVE-2010-20122

CRITICAL EPSS 56.7%
Published Aug 21, 202510mo ago · Modified Jun 16, 20261w ago
9.3 CVSS 4.0
Critical
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Published Aug 21, 2025 10mo ago
Last Modified Jun 16, 2026 1w ago

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.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
56.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-121

References 5

  • raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/xftp_client_pwd.rb
  • web.archive.org https://web.archive.org/web/20090312072219/http://www.netsarang.com/download/down_xft3.html
  • exploit-db.com https://www.exploit-db.com/exploits/12332
  • exploit-db.com https://www.exploit-db.com/exploits/16739
  • vulncheck.com https://www.vulncheck.com/advisories/xftp-ftp-client-pwd-response-buffer-overflow

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.