Vulnerability in Progress Software WS_FTP Server

[ Description ]Official description

A missing release of backend receiver sessions in the Ad Hoc Transfer component of Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could lead to server resource exhaustion and service degradation.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund29 Oct 2026WID-SEC-2026-4240

  Progress Software WS_FTP: Multiple vulnerabilities Translated from German

  CVE-2026-90864CVE-2026-90869CVE-2026-90863+12 more CVEs

[ References ]References

• progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view