Format String Vulnerability in ComSndFTP FTP Server from ComSnd
CVE-2012-10055
Key Information:
- Vendor
Comsndftp
- Status
- Vendor
- CVE Published:
- 13 August 2025
Badges
What is CVE-2012-10055?
The ComSndFTP FTP Server version 1.3.7 Beta is susceptible to a format string vulnerability due to improper handling of the USER command. This flaw allows an attacker to submit a maliciously crafted username containing format specifiers. Exploiting this vulnerability enables the attacker to overwrite a critical function pointer in memory, specifically targeting WSACleanup from Ws2_32.dll. This manipulation can redirect execution flow, successfully bypassing Data Execution Prevention (DEP) mechanisms with a Return-Oriented Programming (ROP) chain, which may ultimately lead to arbitrary code execution. The vulnerability can be triggered without requiring any form of authentication and affects users with default configurations.
Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.
Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.
Affected Version(s)
FTP Server 1.3.7 Beta
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
58% chance of being exploited in the next 30 days.
CVSS V4
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved