Progress WS_FTP Server
YES - ON THE CISA KEV LIST
CVE-2023-40044
Progress WS_FTP Server Deserialization of Untrusted Data Vulnerability
overdue since 2023-10-26
Progress: 9 entries (0.5% of all KEV entries are from this vendor); 1 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
Description
Progress WS_FTP Server contains a deserialization of untrusted data vulnerability in the Ad Hoc Transfer module that allows an authenticated attacker to execute remote commands on the underlying operating system.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023; https://nvd.nist.gov/vuln/detail/CVE-2023-40044
References
Other KEV entries for this vendor: Progress
- CVE-2026-8037 - LoadMaster (2026-08-07)
- CVE-2024-4885 - WhatsUp Gold (2025-03-03)
- CVE-2024-1212 - Kemp LoadMaster (2024-11-18)
- CVE-2024-6670 - WhatsUp Gold (2024-09-16)
- CVE-2024-4358 - Telerik Report Server (2024-06-13)
- CVE-2023-34362 - MOVEit Transfer (2023-06-02)
- CVE-2019-18935 - Telerik UI for ASP.NET AJAX (2021-11-03)
- CVE-2017-9248 - ASP.NET AJAX and Sitefinity (2021-11-03)
Go deeper
KEV deadlines are a governance problem as much as a patching one. TrebSec's AI governance packs help small teams document, assign, and evidence exactly this work.
AI Governance Policy Pack - $79 AI Vendor Workbook - $49 Both packs bundled - $99