CVE-2006-3726

MEDIUMCVSS v2 · 6.56.5—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.5 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:S/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 64.0% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
6.5EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 64%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 64%CVSS v2: 6.5Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

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

Buffer overflow in FileCOPA FTP Server before 1.01 released on 18th July 2006, allows remote authenticated attackers to execute arbitrary code via a long argument to the LIST command.

CVSS v2.0 (legacy)
6.5MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
6.5(low)
EG Risk
60(Track)
EG Risk 60/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
64%
EPSS %ILE
99%
KEV
Not listed

Published

July 21, 2006

Last Modified

April 16, 2026

References (12)

Data Freshness Timeline

(refreshed 3× in last 7d / 4× 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. 2026-09-10 09:23 UTCEPSS rescore
  2. 2026-09-05 15:21 UTCEPSS rescore
  3. 2026-09-04 04:59 UTCEPSS rescore
  4. 2026-08-30 01:14 UTCEPSS rescore
  5. 2026-08-08 16:30 UTCEPSS rescore
  6. 2026-08-05 19:11 UTCEPSS rescore
  7. 2026-08-04 15:03 UTCEPSS rescore
  8. 2026-08-03 10:27 UTCEPSS rescore
  9. 2026-07-26 13:29 UTCEG score recompute▲ 6.50
  10. 2026-07-24 14:11 UTCEPSS rescore
  11. 2026-07-23 00:51 UTCEG score recompute
  12. 2026-07-23 00:30 UTCEG score recompute▼ 5.60
  13. 2026-07-22 23:55 UTCEG score recompute▲ 5.60
  14. 2026-07-22 21:35 UTCEG score recompute
  15. 2026-07-20 17:02 UTCEPSS rescore
  16. 2026-07-16 16:58 UTCEPSS rescore
  17. 2026-07-15 16:53 UTCEPSS rescore
  18. 2026-07-13 22:25 UTCEPSS rescore
  19. 2026-07-11 08:22 UTCEPSS rescore
  20. 2026-07-09 19:03 UTCEPSS rescore
  21. 2026-07-02 14:00 UTCEPSS rescore
  22. 2026-07-01 15:01 UTCEPSS rescore
  23. 2026-06-29 14:02 UTCEPSS rescore
  24. 2026-06-29 14:02 UTCEPSS rescore
  25. 2026-06-27 03:04 UTCEPSS rescore
Show 44 more
  1. 2026-06-25 13:46 UTCEPSS rescore
  2. 2026-06-24 14:01 UTCEPSS rescore
  3. 2026-06-24 14:01 UTCEPSS rescore
  4. 2026-06-23 21:29 UTCEPSS rescore
  5. 2026-06-23 21:29 UTCEPSS rescore
  6. 2026-06-21 01:56 UTCEPSS rescore
  7. 2026-06-19 19:22 UTCEPSS rescore
  8. 2026-06-19 19:22 UTCEPSS rescore
  9. 2026-06-17 17:49 UTCEPSS rescore
  10. 2026-06-17 17:49 UTCEPSS rescore
  11. 2026-06-16 17:49 UTCEPSS rescore
  12. 2026-06-16 17:49 UTCEPSS rescore
  13. 2026-06-15 17:44 UTCEPSS rescore
  14. 2026-06-12 23:08 UTCEPSS rescore
  15. 2026-06-11 13:55 UTCEPSS rescore
  16. 2026-06-10 22:14 UTCEPSS rescore
  17. 2026-06-07 15:21 UTCEPSS rescore
  18. 2026-06-06 13:44 UTCEPSS rescore
  19. 2026-06-06 13:44 UTCEPSS rescore
  20. 2026-06-05 22:43 UTCEPSS rescore
  21. 2026-06-05 06:07 UTCEPSS rescore
  22. 2026-06-05 06:07 UTCEPSS rescore
  23. 2026-06-04 13:09 UTCEPSS rescore
  24. 2026-06-04 13:09 UTCEPSS rescore
  25. 2026-06-02 20:10 UTCEPSS rescore
  26. 2026-06-02 20:10 UTCEPSS rescore
  27. 2026-05-31 07:37 UTCEG score recompute
  28. 2026-05-31 07:37 UTCGHSA enrichment
  29. 2026-05-31 00:13 UTCEPSS rescore
  30. 2026-05-31 00:13 UTCEPSS rescore
  31. 2026-05-31 00:13 UTCEPSS rescore
  32. 2026-05-29 13:40 UTCEPSS rescore
  33. 2026-05-27 13:37 UTCEPSS rescore
  34. 2026-05-27 13:37 UTCEPSS rescore
  35. 2026-05-26 13:41 UTCEPSS rescore
  36. 2026-05-26 13:41 UTCEPSS rescore
  37. 2026-05-26 07:16 UTCEPSS rescore
  38. 2026-05-26 07:16 UTCEPSS rescore
  39. 2026-05-24 16:42 UTCEPSS rescore
  40. 2026-05-22 21:15 UTCEPSS rescore
  41. 2026-05-22 21:15 UTCEPSS rescore
  42. 2026-05-20 22:36 UTCEPSS rescore
  43. 2026-05-20 22:36 UTCEPSS rescore
  44. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-16733✓ verified
    First seen Apr 30, 2010

    FileCOPA FTP Server (Pre 18 Jul Version) - 'LIST' Remote Buffer Overflow (Metasploit)

    Open source ↗
  • Exploit-DBEDB-3107✓ verified
    First seen Jan 9, 2007

    FileCOPA FTP Server 1.01 - 'LIST' Remote Buffer Overflow (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/ftp/filecopa_list_overflow✓ verified
    First seen Jul 19, 2006

    FileCopa FTP Server Pre 18 Jul Version

    Open source ↗

Frequently asked(4)

What is CVE-2006-3726?
CVE-2006-3726 is a medium vulnerability published on July 21, 2006. Buffer overflow in FileCOPA FTP Server before 1.01 released on 18th July 2006, allows remote authenticated attackers to execute arbitrary code via a long argument to the LIST command.
When was CVE-2006-3726 disclosed?
CVE-2006-3726 was first published in the National Vulnerability Database on July 21, 2006, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2006-3726 actively exploited?
CVE-2006-3726 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64% probability of exploitation in the next 30 days, which ranks it in the top 0.8% of all scored CVEs.
How do I remediate CVE-2006-3726?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-3726, 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.

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