Buffer overflow in Freefloat FTP Server
CVE-2012-10023
A stack-based buffer overflow vulnerability exists in FreeFloat FTP Server version 1.0.0. The server fails to properly validate input passed to the USER command, allowing remote attackers to overwrite memory and potentially execute arbitrary code. The flaw is triggered by sending an overly long username string, which overflows the buffer allocated for user authentication.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (83.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.025 · change: +0.007
Affected products
- Freefloat FTP Server — versions 1.0
- Freefloat FTP Server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/w… (Exploit, exploit)
- www.exploit-db.com/exploits/23243 (Exploit, exploit)
- my.saintcorporation.com/cgi-bin/exploit_info/freefloat_ftp_server_user_cmd (Third Party Advisory, third-party-advisory)
- www.exploit-db.com/exploits/15689 (Exploit, exploit)
- web.archive.org/web/20101208040029/http://secunia.com/advisories/42465/ (technical-description, Third Party Advisory, exploit)
- web.archive.org/web/20101213050627/http://www.freefloat.com/sv/about-/about-.php (Product, product)
- www.vulncheck.com/advisories/freefloat-ftp-server-user-command-buffer-overflow (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2012-10023?
- CVE-2012-10023 is a critical-severity vulnerability in Freefloat FTP Server, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-08-05.
- How severe is CVE-2012-10023?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2012-10023 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.