FreeFloat FTP Server USER Command Buffer Overflow
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-10023
- 2026-10-03 Alias added: GHSA-v5vr-r7j6-q2w6
References
Exploit 4
More Freefloat Ftp Server vulnerabilities
- TI-2019-15667 Free Float FTP 1.0 STOR Command Remote Buffer Overflow CVSS 4.0CRITICAL 9.3
- TI-2012-05453 FreeFloat FTP Server Arbitrary File Upload CVSS 4.0CRITICAL 9.3
- TI-2025-05106 FreeFloat FTP Server XMKD Command buffer overflow CVSS 4.0MEDIUM 6.9
- TI-2025-05105 FreeFloat FTP Server XCWD Command buffer overflow CVSS 4.0MEDIUM 6.9
- TI-2025-05104 FreeFloat FTP Server RESTART Command buffer overflow CVSS 4.0MEDIUM 6.9
- TI-2025-05034 FreeFloat FTP Server SET Command buffer overflow CVSS 4.0MEDIUM 6.9
Sources
- CVE-2012-10023 · CVE Program
- CVE-2012-10023 · NVD
- FIRST EPSS
- GHSA-v5vr-r7j6-q2w6 · GitHub Advisory Database · CC BY 4.0
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