CVE-2013-4730

HIGHCVSS v2 · 10.010.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 10.0 — v2 rates that HIGH (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:N/C:C/I:C/A:C. 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 66.5% 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
10.0EG
EchelonGraph verdictMitigate this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 66%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 66%CVSS v2: 10.0Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed services: Not assessed

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

Buffer overflow in PCMan's FTP Server 2.0.7 allows remote attackers to execute arbitrary code via a long string in a USER command.

CVSS v2.0 (legacy)
10.0HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
10.0HIGHlow confidence
EG Risk
76
EG Risk 76/100CISA SSVC

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
Severity100% × 45%
Exploitation66% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track or Track* at medium and Track* or Attend at high mission impact.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
66%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low, Track or Track* at medium and Track* or Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 15, 2014

Last Modified

August 19, 2026

References (8)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 2× in last 7d / 11× 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. 2026-09-30 14:58 UTCEPSS rescore
  2. 2026-09-30 00:13 UTCEG score recompute
  3. 2026-09-26 15:53 UTCEPSS rescore
  4. 2026-09-21 20:25 UTCEPSS rescore
  5. 2026-09-18 19:21 UTCEPSS rescore
  6. 2026-09-17 19:21 UTCEPSS rescore
  7. 2026-09-15 03:04 UTCEPSS rescore
  8. 2026-09-13 16:41 UTCEPSS rescore
  9. 2026-09-12 14:55 UTCEPSS rescore
  10. 2026-09-11 09:30 UTCEPSS rescore
  11. 2026-09-07 15:56 UTCEPSS rescore
  12. 2026-08-30 19:12 UTCEPSS rescore
  13. 2026-08-27 14:20 UTCEPSS rescore
  14. 2026-08-26 14:41 UTCEPSS rescore
  15. 2026-08-21 23:44 UTCEPSS rescore
  16. 2026-08-20 22:50 UTCEPSS rescore
  17. 2026-08-19 18:13 UTCEG score recompute
  18. 2026-08-19 18:12 UTCGHSA enrichment
  19. 2026-08-19 16:59 UTCEPSS rescore
  20. 2026-08-18 13:43 UTCEPSS rescore
  21. 2026-08-16 02:09 UTCEPSS rescore
  22. 2026-08-15 01:25 UTCEPSS rescore
  23. 2026-08-07 16:21 UTCEPSS rescore
  24. 2026-08-06 13:42 UTCEPSS rescore
  25. 2026-07-30 16:23 UTCEPSS rescore
Show 72 more
  1. 2026-07-28 15:31 UTCEPSS rescore
  2. 2026-07-26 13:48 UTCEG score recompute▲ 10.00
  3. 2026-07-23 14:14 UTCEPSS rescore
  4. 2026-07-23 01:10 UTCEG score recompute▼ 6.10
  5. 2026-07-23 00:14 UTCEG score recompute▲ 6.10
  6. 2026-07-22 21:52 UTCEG score recompute
  7. 2026-07-22 14:04 UTCEPSS rescore
  8. 2026-07-21 15:21 UTCEPSS rescore
  9. 2026-07-21 15:21 UTCEPSS rescore
  10. 2026-07-20 17:03 UTCEPSS rescore
  11. 2026-07-20 17:03 UTCEPSS rescore
  12. 2026-07-19 14:27 UTCEPSS rescore
  13. 2026-07-19 14:27 UTCEPSS rescore
  14. 2026-07-16 16:58 UTCEPSS rescore
  15. 2026-07-15 16:54 UTCEPSS rescore
  16. 2026-07-15 16:54 UTCEPSS rescore
  17. 2026-07-13 22:26 UTCEPSS rescore
  18. 2026-07-13 06:08 UTCEPSS rescore
  19. 2026-07-09 19:05 UTCEPSS rescore
  20. 2026-07-02 15:21 UTCEPSS rescore
  21. 2026-07-01 15:02 UTCEPSS rescore
  22. 2026-06-28 04:53 UTCEPSS rescore
  23. 2026-06-28 04:53 UTCEPSS rescore
  24. 2026-06-25 13:47 UTCEPSS rescore
  25. 2026-06-25 13:47 UTCEPSS rescore
  26. 2026-06-24 14:02 UTCEPSS rescore
  27. 2026-06-24 14:02 UTCEPSS rescore
  28. 2026-06-23 21:30 UTCEPSS rescore
  29. 2026-06-23 21:30 UTCEPSS rescore
  30. 2026-06-18 17:49 UTCEPSS rescore
  31. 2026-06-18 17:49 UTCEPSS rescore
  32. 2026-06-17 17:49 UTCEPSS rescore
  33. 2026-06-17 17:49 UTCEPSS rescore
  34. 2026-06-16 17:49 UTCEPSS rescore
  35. 2026-06-16 17:49 UTCEPSS rescore
  36. 2026-06-16 17:49 UTCEPSS rescore
  37. 2026-06-15 17:44 UTCEPSS rescore
  38. 2026-06-13 22:57 UTCEPSS rescore
  39. 2026-06-12 23:08 UTCEPSS rescore
  40. 2026-06-11 13:56 UTCEPSS rescore
  41. 2026-06-10 22:15 UTCEPSS rescore
  42. 2026-06-10 13:18 UTCEPSS rescore
  43. 2026-06-08 14:14 UTCEPSS rescore
  44. 2026-06-07 15:22 UTCEPSS rescore
  45. 2026-06-05 22:44 UTCEPSS rescore
  46. 2026-06-05 22:44 UTCEPSS rescore
  47. 2026-06-05 06:08 UTCEPSS rescore
  48. 2026-06-05 06:08 UTCEPSS rescore
  49. 2026-06-04 13:09 UTCEPSS rescore
  50. 2026-06-04 13:09 UTCEPSS rescore
  51. 2026-06-02 20:10 UTCEPSS rescore
  52. 2026-06-02 20:10 UTCEPSS rescore
  53. 2026-06-01 13:49 UTCEPSS rescore
  54. 2026-06-01 13:49 UTCEPSS rescore
  55. 2026-05-31 00:14 UTCEPSS rescore
  56. 2026-05-31 00:14 UTCEPSS rescore
  57. 2026-05-29 13:41 UTCEPSS rescore
  58. 2026-05-29 13:41 UTCEPSS rescore
  59. 2026-05-28 18:57 UTCEG score recompute
  60. 2026-05-28 18:57 UTCGHSA enrichment
  61. 2026-05-28 13:42 UTCEPSS rescore
  62. 2026-05-28 13:42 UTCEPSS rescore
  63. 2026-05-28 13:42 UTCEPSS rescore
  64. 2026-05-27 13:38 UTCEPSS rescore
  65. 2026-05-27 13:38 UTCEPSS rescore
  66. 2026-05-26 07:16 UTCEPSS rescore
  67. 2026-05-26 07:16 UTCEPSS rescore
  68. 2026-05-21 22:39 UTCEPSS rescore
  69. 2026-05-20 22:37 UTCEPSS rescore
  70. 2026-05-20 22:37 UTCEPSS rescore
  71. 2026-05-18 21:29 UTCEPSS rescore
  72. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(10 references)

Working exploit code is in the public domain (2 Metasploit modules) (1 GitHub PoC) (7 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-38013✓ verified
    First seen Aug 29, 2015

    PCMan FTP Server 2.0.7 - 'RENAME' Remote Buffer Overflow

    Open source ↗
  • Metasploitexploit/windows/ftp/pcman_put✓ verified
    First seen Aug 7, 2015

    PCMAN FTP Server Buffer Overflow - PUT Command

    Open source ↗
  • Exploit-DBEDB-31789✓ verified
    First seen Feb 20, 2014

    PCMan FTP Server 2.07 - Remote Buffer Overflow

    Open source ↗
  • Exploit-DBEDB-31254✓ verified
    First seen Jan 29, 2014

    PCMan FTP Server 2.07 - 'ABOR' Remote Buffer Overflow

    Open source ↗
  • Exploit-DBEDB-31255✓ verified
    First seen Jan 29, 2014

    PCMan FTP Server 2.07 - 'CWD' Remote Buffer Overflow

    Open source ↗
  • Exploit-DBEDB-27703✓ verified
    First seen Aug 19, 2013

    PCMan FTP Server 2.07 - 'STOR' Remote Buffer Overflow

    Open source ↗
  • Exploit-DBEDB-27277✓ verified
    First seen Aug 2, 2013

    PCMan FTP Server 2.07 - 'PASS' Remote Buffer Overflow

    Open source ↗
  • Exploit-DBEDB-27007✓ verified
    First seen Jul 22, 2013

    PCMan FTP Server 2.0.7 - Remote (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/ftp/pcman_stor✓ verified
    First seen Jun 27, 2013

    PCMAN FTP Server Post-Authentication STOR Command Stack Buffer Overflow

    Open source ↗
  • GitHub PoCt0rt3ll1n0/PCmanBoF
    First seen Nov 12, 2020

    A very simple buffer overflow using CVE-2013-4730 against PCman's FTP server

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2013-4730?
CVE-2013-4730 is a high vulnerability published on May 15, 2014. Buffer overflow in PCMan's FTP Server 2.0.7 allows remote attackers to execute arbitrary code via a long string in a USER command.
When was CVE-2013-4730 disclosed?
CVE-2013-4730 was first published on May 15, 2014, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-4730 actively exploited?
CVE-2013-4730 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 66% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
How do I remediate CVE-2013-4730?
No fix for CVE-2013-4730 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2013-4730

Explore →

Is Your Infrastructure Affected by CVE-2013-4730?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs