Remote Code Execution in WS_FTP Server by Progress Software
CVE-2026-90869

7.5HIGH

Key Information:

Vendor

Progress Software
Status
Ws Ftp Server
Vendor
CVE Published:
29 October 2026

What is CVE-2026-90869?

A vulnerability exists in the WS_FTP Server from Progress Software that allows a remote attacker to terminate the shared SSH service if they have knowledge of a valid account's enrolled SSH public key. This affects versions prior to 2024.0.7 and 2025.0.4 on Windows, posing a significant risk to users relying on this service.

Affected Version(s)

WS_FTP Server Windows 0 < 2024.0.7

WS_FTP Server Windows 0 < 2025.0.4

References

https://progress.lightning.force.com/lightning/r/Knowledg...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Niv Levy (restricted)
.