CVE-2026-90865: Command Injection via FTP Notification Variables in Progress WS_FTP…

Description

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.

Scores

CVSS scores of CVE-2026-90865, by who scored it
Scored by	CVSS	Score	Vector
ProgressSoftwareCNA (assigner)	3.1	Critical9.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
NVDNVD · Awaiting Analysis	3.1	Critical9.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS (exploitation in 30 days): 1.1% · top 33% of all CVEs (7 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.0.

Weakness

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (opens in a new tab)All about CWE-78 and its CVEs
CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (opens in a new tab)All about CWE-88 and its CVEs

Affected products

Progress Software · WS_FTP Server
- affected < 2024.0.7
- affected < 2025.0.4

What to do

Workaround: Contact Progress Software Technical Support for guidance on available mitigations.

References (1)

https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view (opens in a new tab)vendor-advisory

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

[![CVE-2026-90865](https://trackcve.app/badge/CVE-2026-90865.svg)](https://trackcve.app/cve/CVE-2026-90865)

Record last updated 30 Oct 2026, 17:18 UTC.

Command Injection via FTP Notification Variables in Progress WS_FTP Server