CVE-2017-15222

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 60%
CISA-KEV: Not listedEPSS: 60%CVSS: 9.8Exploit: NoneExposed: 0

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

Buffer Overflow vulnerability in Ayukov NFTPD 2.0 and earlier allows remote attackers to execute arbitrary code.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
99.0%
KEV
Not listed

Published

October 24, 2017

Last Modified

May 13, 2026

Advisory Details (4)

Auto-updated May 15, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Ayukov NFTP FTP Client 2.0 - Buffer Overflow - Windows_x86 local Exploit

https://www.exploit-db.com/exploits/46070/
generic🟡 PoC Available

Ayukov NFTP FTP Client 2.0 - Remote Buffer Overflow (Metasploit) - Windows remote Exploit

https://www.exploit-db.com/exploits/43448/
generic🟡 PoC Available

Ayukov NFTP FTP Client < 2.0 - Remote Buffer Overflow - Windows remote Exploit

https://www.exploit-db.com/exploits/43025/
generic
http://www.securityfocus.com/bid/101602

Data Freshness Timeline

(refreshed 5× in last 7d / 23× 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. 2026-07-06 02:20 UTCEPSS rescore
  2. 2026-07-05 02:27 UTCEPSS rescore
  3. 2026-07-04 06:28 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-07-01 15:02 UTCEPSS rescore
  6. 2026-06-28 04:53 UTCEPSS rescore
  7. 2026-06-27 03:05 UTCEPSS rescore
  8. 2026-06-25 13:47 UTCEPSS rescore
  9. 2026-06-25 13:47 UTCEPSS rescore
  10. 2026-06-23 21:30 UTCEPSS rescore
  11. 2026-06-22 14:23 UTCEPSS rescore
  12. 2026-06-22 14:23 UTCEPSS rescore
  13. 2026-06-21 14:54 UTCEPSS rescore
  14. 2026-06-21 14:54 UTCEPSS rescore
  15. 2026-06-21 01:57 UTCEPSS rescore
  16. 2026-06-21 01:57 UTCEPSS rescore
  17. 2026-06-18 17:50 UTCEPSS rescore
  18. 2026-06-17 17:50 UTCEPSS rescore
  19. 2026-06-16 17:50 UTCEPSS rescore
  20. 2026-06-15 17:45 UTCEPSS rescore
  21. 2026-06-12 23:09 UTCEPSS rescore
  22. 2026-06-11 13:57 UTCEPSS rescore
  23. 2026-06-10 22:15 UTCEPSS rescore
  24. 2026-06-07 15:22 UTCEPSS rescore
  25. 2026-06-07 15:22 UTCEPSS rescore
Show 38 more
  1. 2026-06-06 13:45 UTCEPSS rescore
  2. 2026-06-06 13:45 UTCEPSS rescore
  3. 2026-06-05 22:44 UTCEPSS rescore
  4. 2026-06-05 06:08 UTCEPSS rescore
  5. 2026-06-05 06:08 UTCEPSS rescore
  6. 2026-05-31 00:14 UTCEPSS rescore
  7. 2026-05-28 13:42 UTCEPSS rescore
  8. 2026-05-28 13:42 UTCEPSS rescore
  9. 2026-05-27 13:38 UTCEPSS rescore
  10. 2026-05-27 13:38 UTCEPSS rescore
  11. 2026-05-26 13:42 UTCEPSS rescore
  12. 2026-05-26 13:42 UTCEPSS rescore
  13. 2026-05-26 07:17 UTCEPSS rescore
  14. 2026-05-26 07:17 UTCEPSS rescore
  15. 2026-05-22 21:15 UTCEPSS rescore
  16. 2026-05-22 21:15 UTCEPSS rescore
  17. 2026-05-22 21:15 UTCEPSS rescore
  18. 2026-05-20 22:37 UTCEPSS rescore
  19. 2026-05-20 22:37 UTCEPSS rescore
  20. 2026-05-20 10:22 UTCEG score recompute
  21. 2026-05-20 10:22 UTCGHSA enrichment
  22. 2026-05-20 05:57 UTCEG score recompute
  23. 2026-05-20 05:57 UTCGHSA enrichment
  24. 2026-05-20 01:32 UTCEG score recompute
  25. 2026-05-20 01:32 UTCGHSA enrichment
  26. 2026-05-19 21:08 UTCEG score recompute
  27. 2026-05-19 21:08 UTCGHSA enrichment
  28. 2026-05-19 16:43 UTCEG score recompute
  29. 2026-05-19 16:43 UTCGHSA enrichment
  30. 2026-05-19 12:18 UTCEG score recompute
  31. 2026-05-19 12:18 UTCGHSA enrichment
  32. 2026-05-19 07:53 UTCEG score recompute
  33. 2026-05-19 07:53 UTCGHSA enrichment
  34. 2026-05-19 03:29 UTCEG score recompute
  35. 2026-05-19 03:28 UTCGHSA enrichment
  36. 2026-05-18 23:03 UTCEG score recompute
  37. 2026-05-18 21:30 UTCEPSS rescore
  38. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-46070
    First seen Jan 2, 2019

    Ayukov NFTP FTP Client 2.0 - Buffer Overflow

    Open source ↗
  • Exploit-DBEDB-43448✓ verified
    First seen Jan 5, 2018

    Ayukov NFTP FTP Client 2.0 - Remote Buffer Overflow (Metasploit)

    Open source ↗
  • Exploit-DBEDB-43025✓ verified
    First seen Oct 21, 2017

    Ayukov NFTP FTP Client < 2.0 - Remote Buffer Overflow

    Open source ↗
  • Metasploitexploit/windows/ftp/ayukov_nftp✓ verified
    First seen Oct 21, 2017

    Ayukov NFTP FTP Client Buffer Overflow

    Open source ↗

Frequently asked(5)

What is CVE-2017-15222?
CVE-2017-15222 is a critical vulnerability published on October 24, 2017. Buffer Overflow vulnerability in Ayukov NFTPD 2.0 and earlier allows remote attackers to execute arbitrary code.
When was CVE-2017-15222 disclosed?
CVE-2017-15222 was first published in the National Vulnerability Database on October 24, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-15222 actively exploited?
CVE-2017-15222 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-15222?
CVE-2017-15222 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-15222?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-15222, 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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