Command injection via FTP notification variables in Progress WS_FTP Server
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
Progress Software WS_FTP Server versions before 2024.0.7 and before 2025.0.4 on Windows contain an OS command injection flaw (CWE-78) in the handling of FTP notification variables. Under certain configurations, a remote attacker can run arbitrary commands with elevated privileges, and the attack needs high complexity to succeed.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update WS_FTP Server to version 2024.0.7 or 2025.0.4 or later, depending on the release line in use.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
- Fix · CNA WS_FTP Server (Progress Software) Fixed in 2024.0.7, 2025.0.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Progress Software WS_FTP Server — progress.lightning.force.com/lightning/r/Knowledge__kav/ka7…
15 records Highest priority Priority MEDIUM 6 MEDIUM, 9 LOW
Other records, highest priority first
- TI-2026-82604 Improper authentication in Progress WS_FTP Server exposes credentialsPriority MEDIUM 50
- TI-2026-82613 OS command injection in Progress WS_FTP ServerPriority MEDIUM 46
- TI-2026-82611 Path traversal in Progress WS_FTP Server lets Host Administrators escape scopePriority MEDIUM 43
Timeline
- 2026-10-29 Threatist record created from CVE-2026-90865
- 2026-10-29 Alias added: GHSA-4v72-8xj2-5f6x
- 2026-10-30 CISA SSVC decision points changed
- 2026-10-30 Priority changed: MEDIUM → LOW
- 2026-10-30 CISA SSVC decision points changed
- 2026-10-31 Priority changed: LOW → MEDIUM
References
More Progress vulnerabilities
- TI-2026-07083 Command injection in Progress LoadMaster KEVCVSS 3.1CRITICAL 9.8
- TI-2024-06182 WhatsUp Gold HasErrors SQL Injection Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-04541 WhatsUp Gold GetFileWithoutZip Directory Traversal Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-04060 Registration Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-01127 LoadMaster Pre-Authenticated OS Command Injection KEVCVSS 3.1CRITICAL 10.0
- TI-2023-20934 WS_FTP Server Ad Hoc Transfer Module .NET Deserialization Vulnerability KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-90865 · CVE Program
- CVE-2026-90865 · NVD
- FIRST EPSS
- GHSA-4v72-8xj2-5f6x · GitHub Advisory Database · CC BY 4.0
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