FreeFloat FTP Server USER Command Buffer Overflow
Published Aug 5, 2025
6.9
MEDIUMCVSS 4.0
EPSS 2.48%
Description
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.
Affected products
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| FreeFloat | FTP Server | n/a |
|
- 1.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS: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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Aug 6, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.48% (0.02478) | 83.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.67% (0.01672) | 73.72th | v5 (v2026.06.15) |
| Jun 1, 2026 | 80.47% (0.80467) | 99.15th | v4 (v2025.03.14) |
| Jan 1, 2026 | 71.18% (0.71184) | 98.67th | v4 (v2025.03.14) |
| Dec 5, 2025 | 76.44% (0.76441) | 98.88th | v4 (v2025.03.14) |
| Oct 8, 2025 | 73.95% (0.73947) | 98.76th | v4 (v2025.03.14) |
| Sep 5, 2025 | 1.79% (0.01794) | 82.05th | v4 (v2025.03.14) |
| Aug 6, 2025 | 0.70% (0.00701) | 71.07th | v4 (v2025.03.14) |
References (7)
- https://my.saintcorporation.com/cgi-bin/exploit_info/freefloat_ftp_server_user_cmd third-party-advisoryThird Party Advisory
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/freefloatftp_user.rb exploit
- https://web.archive.org/web/20101208040029/http://secunia.com/advisories/42465/ technical-descriptionexploitThird Party Advisory
- https://web.archive.org/web/20101213050627/http://www.freefloat.com/sv/about-/about-.php product
- https://www.exploit-db.com/exploits/15689 exploit
- https://www.exploit-db.com/exploits/23243 exploit
- https://www.vulncheck.com/advisories/freefloat-ftp-server-user-command-buffer-overflow third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://my.saintcorporation.com/cgi-bin/exploit_info/freefloat_ftp_server_user_cmd | third-party-advisoryThird Party Advisory | |
| https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/freefloatftp_user.rb | exploit | |
| https://web.archive.org/web/20101208040029/http://secunia.com/advisories/42465/ | technical-descriptionexploitThird Party Advisory | |
| https://web.archive.org/web/20101213050627/http://www.freefloat.com/sv/about-/about-.php | product | |
| https://www.exploit-db.com/exploits/15689 | exploit | |
| https://www.exploit-db.com/exploits/23243 | exploit | |
| https://www.vulncheck.com/advisories/freefloat-ftp-server-user-command-buffer-overflow | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.