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TI-2020-17420 Aliases CVE-2020-28864GHSA-vrx9-j28q-wm7x

Buffer overflow in WinSCP 5.17.8 allows a malicious FTP server to cause a denial of…

Priority MEDIUM 47CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

Buffer overflow in WinSCP 5.17.8 allows a malicious FTP server to cause a denial of service or possibly have other unspecified impact via a long file name.

Why it matters now

EPSS 0.02847 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:winscp:winscp:5.17.8:*:*:*:*:*:*:*5.17.8VulnerableWinscp
  • cpe:2.3:a:winscp:winscp:5.17.8:*:*:*:*:*:*:* Versions 5.17.8 Vulnerable ·Winscp

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-28864
  2. 2026-10-03 Alias added: GHSA-vrx9-j28q-wm7x

References

Advisory 2

  • TI-2002-01283 Multiple SSH2 servers and clients do not properly handle large packets or large fields… CVSS 2.0HIGH 10.0
  • TI-2023-26623 The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6… CVSS 3.1MEDIUM 5.9
  • TI-2019-04326 In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server… CVSS 3.1MEDIUM 6.8
  • TI-2019-04327 An issue was discovered in OpenSSH 7.9. CVSS 3.1MEDIUM 5.9
  • TI-2021-02333 WinSCP before 5.17.10 allows remote attackers to execute arbitrary programs when the URL… CVSS 3.1CRITICAL 9.8
  • TI-2002-01281 Multiple SSH2 servers and clients do not properly handle packets or data elements with… CVSS 2.0HIGH 10.0
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences