Critical severity · published Oct 29, 2026
CVE-2026-90868
OS Command Injection in Progress WS_FTP Server
New
9.9
CVSS
–
EPSS
No
On KEV
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 under certain configurations.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WS
WS_FTP Server · Progress Software
before 2024.0.7; before 2025.0.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90868
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-90868
vendor-advisory
https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view
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Command Injection via FTP Notification Variables in Progress WS_FTP Server