CVE-2010-20122

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 58.6%, top 2% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Weaponized
9.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.3Exploit: NoneExposed: 0

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

Xftp FTP Client version up to and including 3.0 (build 0238) contain a stack-based buffer overflow vulnerability triggered by a maliciously crafted PWD response from an FTP server. When the client connects to a server and receives an overly long directory string in response to the PWD command, the client fails to properly validate the length of the input before copying it into a fixed-size buffer. This results in memory corruption and allows remote attackers to execute arbitrary code on the client system.

CVSS v3
9.3
EG Score
9.3(medium)
EPSS
57.2%
KEV
Not listed

Published

August 21, 2025

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated Jun 10, 2026
No patch confirmed yet.
generic

Xftp FTP Client 3.0 PWD Response Buffer Overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/xftp-ftp-client-pwd-response-buffer-overflow
generic

NetSarang - Secure Connectivity Solutions: PC X server, SSH client, SFTP client, LPD server

https://web.archive.org/web/20090312072219/http://www.netsarang.com/download/down_xft3.html
generic
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/xftp_client_pwd.rb

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 31× 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. 2026-07-19 02:25 UTCEPSS rescore
  2. 2026-07-18 10:00 UTCEPSS rescore
  3. 2026-07-16 16:58 UTCEPSS rescore
  4. 2026-07-15 16:54 UTCEPSS rescore
  5. 2026-07-15 16:54 UTCEPSS rescore
  6. 2026-07-15 01:55 UTCEPSS rescore
  7. 2026-07-13 22:25 UTCEPSS rescore
  8. 2026-07-13 06:08 UTCEPSS rescore
  9. 2026-07-11 08:22 UTCEPSS rescore
  10. 2026-07-08 15:10 UTCEPSS rescore
  11. 2026-07-08 15:10 UTCEPSS rescore
  12. 2026-07-06 02:19 UTCEPSS rescore
  13. 2026-07-06 02:19 UTCEPSS rescore
  14. 2026-07-05 02:26 UTCEPSS rescore
  15. 2026-07-02 14:01 UTCEPSS rescore
  16. 2026-07-01 15:02 UTCEPSS rescore
  17. 2026-06-30 23:19 UTCEPSS rescore
  18. 2026-06-28 14:03 UTCEPSS rescore
  19. 2026-06-28 04:52 UTCEPSS rescore
  20. 2026-06-28 04:52 UTCEPSS rescore
  21. 2026-06-27 03:05 UTCEPSS rescore
  22. 2026-06-25 13:46 UTCEPSS rescore
  23. 2026-06-24 14:02 UTCEPSS rescore
  24. 2026-06-24 14:02 UTCEPSS rescore
  25. 2026-06-23 21:30 UTCEPSS rescore
Show 55 more
  1. 2026-06-23 21:29 UTCEPSS rescore
  2. 2026-06-22 14:22 UTCEPSS rescore
  3. 2026-06-22 14:22 UTCEPSS rescore
  4. 2026-06-21 14:53 UTCEPSS rescore
  5. 2026-06-21 01:56 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. 2026-06-18 17:49 UTCEPSS rescore
  10. 2026-06-18 17:49 UTCEPSS rescore
  11. 2026-06-17 17:49 UTCEPSS rescore
  12. 2026-06-17 17:49 UTCEPSS rescore
  13. 2026-06-16 17:49 UTCEPSS rescore
  14. 2026-06-15 17:44 UTCEPSS rescore
  15. 2026-06-14 23:14 UTCEPSS rescore
  16. 2026-06-13 22:57 UTCEPSS rescore
  17. 2026-06-13 22:57 UTCEPSS rescore
  18. 2026-06-13 22:57 UTCEPSS rescore
  19. 2026-06-12 23:08 UTCEPSS rescore
  20. 2026-06-12 23:08 UTCEPSS rescore
  21. 2026-06-11 13:56 UTCEPSS rescore
  22. 2026-06-10 22:14 UTCEPSS rescore
  23. 2026-06-10 13:17 UTCEPSS rescore
  24. 2026-06-08 15:39 UTCEG score recompute▲ 9.30
  25. 2026-06-08 15:39 UTCGHSA enrichment
  26. 2026-06-08 14:13 UTCEPSS rescore
  27. 2026-06-05 22:44 UTCEPSS rescore
  28. 2026-06-05 22:44 UTCEPSS rescore
  29. 2026-06-02 20:10 UTCEPSS rescore
  30. 2026-06-02 20:10 UTCEPSS rescore
  31. 2026-06-01 13:49 UTCEPSS rescore
  32. 2026-06-01 13:49 UTCEPSS rescore
  33. 2026-05-31 00:14 UTCEPSS rescore
  34. 2026-05-31 00:13 UTCEPSS rescore
  35. 2026-05-29 13:40 UTCEPSS rescore
  36. 2026-05-28 13:42 UTCEPSS rescore
  37. 2026-05-28 13:42 UTCEPSS rescore
  38. 2026-05-27 13:38 UTCEPSS rescore
  39. 2026-05-27 13:38 UTCEPSS rescore
  40. 2026-05-26 13:41 UTCEPSS rescore
  41. 2026-05-26 13:41 UTCEPSS rescore
  42. 2026-05-24 16:43 UTCEPSS rescore
  43. 2026-05-22 21:15 UTCEPSS rescore
  44. 2026-05-22 21:15 UTCEPSS rescore
  45. 2026-05-22 21:15 UTCEPSS rescore
  46. 2026-05-21 22:39 UTCEPSS rescore
  47. 2026-05-21 09:22 UTCEG score recompute
  48. 2026-05-21 09:22 UTCGHSA enrichment
  49. 2026-05-20 22:37 UTCEPSS rescore
  50. 2026-05-20 22:37 UTCEPSS rescore
  51. 2026-05-20 22:37 UTCEPSS rescore
  52. 2026-05-20 11:21 UTCEPSS rescore
  53. 2026-05-20 11:21 UTCEPSS rescore
  54. 2026-05-18 21:29 UTCEPSS rescore
  55. 2026-05-18 21:29 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/xftp_client_pwd✓ verified
    First seen Apr 22, 2010

    Xftp FTP Client 3.0 PWD Remote Buffer Overflow

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2010-20122?
CVE-2010-20122 is a critical vulnerability published on August 21, 2025. Xftp FTP Client version up to and including 3.0 (build 0238) contain a stack-based buffer overflow vulnerability triggered by a maliciously crafted PWD response from an FTP server. When the client connects to a server and receives an overly long directory string in response to the PWD command, the…
When was CVE-2010-20122 disclosed?
CVE-2010-20122 was first published in the National Vulnerability Database on August 21, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2010-20122 actively exploited?
CVE-2010-20122 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2010-20122?
CVE-2010-20122 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2010-20122?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2010-20122, 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

Explore the affected products and dependency analysis for CVE-2010-20122

Explore →

Is Your Infrastructure Affected by CVE-2010-20122?

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

Start Free Scan →Browse All CVEs