CVE-2026-90870mediumCWE-400CWE-772

CVE-2026-90870: medium-severity vulnerability in Progress Software WS_FTP Server

Unauthenticated Ad Hoc Transfer Resource Exhaustion in Progress WS_FTP Server

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 0.3%
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Progress Software · WS_FTP Server
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