Vulnerability in Comsndftp FTP Server
CVE-2012-10055
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.
Published · last modified .
EPSS exploit prediction
EPSS: 0.016 (75.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Comsndftp FTP Server — versions 1.3.7 Beta
Weakness classification (CWE)
Public proof-of-concept exploits
References
- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/w… (exploit)
- www.exploit-db.com/exploits/19024 (exploit)
- www.exploit-db.com/exploits/19177 (exploit)
- web.archive.org/web/20120317214524/http://ftp.comsnd.com/ (product)
- www.vulncheck.com/advisories/comsndftp-user-format-string-rce (third-party-advisory)
Frequently asked questions
- What is CVE-2012-10055?
- CVE-2012-10055 is a vulnerability in Comsndftp FTP Server, classified under Use of Externally-Controlled Format String. Published 2025-08-13.
- Is CVE-2012-10055 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.