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.

CVSS v4.0

6.9 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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

CVSS v3.1

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.73% chance of exploitation in the next 30 days, 76th percentile

Published

2025-08-05

Updated

2026-04-07

Proof-of-concept exploits (3)

• https://www.exploit-db.com/exploits/15689
• https://www.exploit-db.com/exploits/23243
• https://web.archive.org/web/20101208040029/http://secunia.com/advisories/42465/

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/windows/ftp/freefloatftp_user.rb

References

• CVE Record
• NVD entry

Related

• CVE-2012-10022
• CVE-2012-10024
• CVE-2012-10021
• CVE-2012-10025
• CVE-2012-10020
• CVE-2012-10026