CVE-2012-10055

CRITICAL

ComSndFTP FTP Server <1.3.7 Beta - Code Injection

Title source: llm

Description

ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanup from Ws2_32.dll). This allows the attacker to redirect execution flow and bypass DEP protections using a ROP chain, ultimately leading to arbitrary code execution. The vulnerability is exploitable without authentication and affects default configurations.

Exploits (3)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotewindows
https://www.exploit-db.com/exploits/19177
exploitdb WORKING POC VERIFIED
by demonalex · perldoswindows
https://www.exploit-db.com/exploits/19024
metasploit WORKING POC GOOD
rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb

Scores

CVSS v4 9.3
EPSS 0.5895
EPSS Percentile 98.2%
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

Details

CWE
CWE-134
Status published
Products (1)
ComSndFTP/FTP Server 1.3.7 Beta
Published Aug 13, 2025
Tracked Since Feb 18, 2026