Command Injection via FTP Notification Variables in Progress WS_FTP Server

published 2026-10-29 10 d ago modified 2026-10-30 9 d ago also EUVD-2026-113022

cvss: 9.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits: 0; none known

An OS command injection vulnerability in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow arbitrary command execution with elevated privileges under certain configurations.

Patch / fix

fixed in 1

Progress Software WS_FTP Server 2024.0.7, 2025.0.4

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 10 d ago (2026-10-30)

Exploit prediction

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Progress Software WS_FTP Server

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-88 Improper Neutralization of Argument Delimiters in a Command

References

progress.lightning.force.com /lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view
vendor-advisory

Sources

CVE List CVE-2026-90865
NVD CVE-2026-90865

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary