CVE-2023-40044

Published: Sep 27, 2023

Modified: Oct 21, 2025

PUBLISHED

CVSS v3.1

10.0

CRITICAL

Description

In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a pre-authenticated attacker could leverage a .NET deserialization vulnerability in the Ad Hoc Transfer module to execute remote commands on the underlying WS_FTP Server operating system.

Vendor	Product	Versions
Progress Software Corporation	WS_FTP Server	affected `8.8.0 - < 8.8.2` affected `8.7.0 - < 8.7.4`

Weaknesses (CWE)

CWE-502

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

References

https://www.progress.com/ws_ftp

product

https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023

vendor-advisory

https://www.theregister.com/2023/10/02/ws_ftp_update/

https://www.rapid7.com/blog/post/2023/09/29/etr-critical-vulnerabilities-in-ws_ftp-server/

https://attackerkb.com/topics/bn32f9sNax/cve-2023-40044

https://censys.com/cve-2023-40044/

https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-iis-http-modules-cve-2023-40044

http://packetstormsecurity.com/files/174917/Progress-Software-WS_FTP-Unauthenticated-Remote-Code-Execution.html

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CVE-2023-40044

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References