CVE-2012-10023

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory published 2025-08-05. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.8
EG Score
9.8(medium)
EPSS
75.0%
KEV
Not listed

Published

August 5, 2025

Last Modified

September 3, 2025

Advisory Details (7)

Auto-updated May 30, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Freefloat FTP Server - 'USER' Remote Buffer Overflow - Windows remote Exploit

https://www.exploit-db.com/exploits/23243
generic

FreeFloat FTP Server USER Command Buffer Overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/freefloat-ftp-server-user-command-buffer-overflow
generic🟡 PoC Available

Freefloat FTP Server - Remote Buffer Overflow - Windows remote Exploit

https://www.exploit-db.com/exploits/15689
generic

FreeFloat Products

https://web.archive.org/web/20101213050627/http://www.freefloat.com/sv/about-/about-.php
generic

Freefloat FTP Server Reply Buffer Overflow Vulnerability - Advisories - Community

https://web.archive.org/web/20101208040029/http://secunia.com/advisories/42465/
generic
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/freefloatftp_user.rb
generic

SAINTexploit Information: freefloat_ftp_server_user_cmd

https://my.saintcorporation.com/cgi-bin/exploit_info/freefloat_ftp_server_user_cmd

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-15 16:54 UTCEPSS rescore
  2. 2026-07-15 16:54 UTCEPSS rescore
  3. 2026-07-15 01:56 UTCEPSS rescore
  4. 2026-07-13 22:25 UTCEPSS rescore
  5. 2026-07-11 08:22 UTCEPSS rescore
  6. 2026-07-09 19:05 UTCEPSS rescore
  7. 2026-07-08 15:10 UTCEPSS rescore
  8. 2026-07-08 15:10 UTCEPSS rescore
  9. 2026-07-06 16:23 UTCEPSS rescore
  10. 2026-07-06 02:19 UTCEPSS rescore
  11. 2026-07-06 02:19 UTCEPSS rescore
  12. 2026-07-05 02:26 UTCEPSS rescore
  13. 2026-07-04 06:27 UTCEPSS rescore
  14. 2026-07-02 14:01 UTCEPSS rescore
  15. 2026-07-01 15:02 UTCEPSS rescore
  16. 2026-06-30 23:19 UTCEPSS rescore
  17. 2026-06-30 23:19 UTCEPSS rescore
  18. 2026-06-29 14:02 UTCEPSS rescore
  19. 2026-06-28 14:03 UTCEPSS rescore
  20. 2026-06-28 04:53 UTCEPSS rescore
  21. 2026-06-28 04:53 UTCEPSS rescore
  22. 2026-06-27 03:05 UTCEPSS rescore
  23. 2026-06-27 03:05 UTCEPSS rescore
  24. 2026-06-25 13:46 UTCEPSS rescore
  25. 2026-06-25 13:46 UTCEPSS rescore
Show 38 more
  1. 2026-06-24 14:02 UTCEPSS rescore
  2. 2026-06-24 14:02 UTCEPSS rescore
  3. 2026-06-23 21:30 UTCEPSS rescore
  4. 2026-06-22 14:22 UTCEPSS rescore
  5. 2026-06-22 14:22 UTCEPSS rescore
  6. 2026-06-21 14:53 UTCEPSS rescore
  7. 2026-06-21 01:56 UTCEPSS rescore
  8. 2026-06-21 01:56 UTCEPSS rescore
  9. 2026-06-19 19:22 UTCEPSS rescore
  10. 2026-06-19 19:22 UTCEPSS rescore
  11. 2026-06-18 17:49 UTCEPSS rescore
  12. 2026-06-18 17:49 UTCEPSS rescore
  13. 2026-06-17 17:49 UTCEPSS rescore
  14. 2026-06-17 17:49 UTCEPSS rescore
  15. 2026-06-16 17:49 UTCEPSS rescore
  16. 2026-06-16 17:49 UTCEPSS rescore
  17. 2026-06-15 17:44 UTCEPSS rescore
  18. 2026-06-12 23:08 UTCEPSS rescore
  19. 2026-06-10 22:14 UTCEPSS rescore
  20. 2026-06-08 14:14 UTCEPSS rescore
  21. 2026-06-08 14:14 UTCEPSS rescore
  22. 2026-06-07 15:22 UTCEPSS rescore
  23. 2026-06-07 15:22 UTCEPSS rescore
  24. 2026-06-06 13:45 UTCEPSS rescore
  25. 2026-06-06 13:45 UTCEPSS rescore
  26. 2026-06-05 22:44 UTCEPSS rescore
  27. 2026-06-05 22:44 UTCEPSS rescore
  28. 2026-06-05 06:08 UTCEPSS rescore
  29. 2026-06-05 06:08 UTCEPSS rescore
  30. 2026-06-04 13:09 UTCEPSS rescore
  31. 2026-06-02 20:10 UTCEPSS rescore
  32. 2026-06-02 20:10 UTCEPSS rescore
  33. 2026-06-01 13:49 UTCEPSS rescore
  34. 2026-05-31 00:14 UTCEPSS rescore
  35. 2026-05-31 00:14 UTCEPSS rescore
  36. 2026-05-30 00:55 UTCEG score recompute
  37. 2026-05-30 00:55 UTCGHSA enrichment
  38. 2026-05-29 13:41 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/windows/ftp/freefloatftp_user✓ verified
    First seen Jun 12, 2012

    Free Float FTP Server USER Command Buffer Overflow

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2012-10023?
CVE-2012-10023 is a critical vulnerability published on August 5, 2025. 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…
When was CVE-2012-10023 disclosed?
CVE-2012-10023 was first published in the National Vulnerability Database on August 5, 2025, with the most recent update on September 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-10023 actively exploited?
CVE-2012-10023 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2012-10023?
CVE-2012-10023 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2012-10023?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-10023, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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