CVE-2026-90870 — MEDIUM (5.3)

Vulnerability 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.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Related Weaknesses (CWE)

CWE-772 CWE-400

References

https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86I

FAQ

What is CVE-2026-90870?

CVE-2026-90870 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 exha...

How severe is CVE-2026-90870?

CVE-2026-90870 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-90870?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.