CVE-2026-90870

Unauthenticated Ad Hoc Transfer Resource Exhaustion in Progress WS_FTP Server

State: Published
Severity: 5.3 Medium
Published: Oct 29, 2026
Updated: Oct 29, 2026
Reserved: Sep 14, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	ProgressSoftware

Weaknesses

CWE-400 Uncontrolled Resource Consumption
CWE-772 Missing Release of Resource after Effective Lifetime

Affected Products

Product	Versions
WS_FTP ServerProgress Software	before 2024.0.7Affected before 2025.0.4Affected

References

https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/viewvendor-advisory

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