CVE-2023-40044 is a critical .NET deserialization vulnerability in Progress WS_FTP Server versions prior to 8.7.4 and 8.8.2, specifically within the Ad Hoc Transfer module. This flaw allows a pre-authenticated attacker to execute remote commands on the underlying operating system. With a CVSS score of 8.8 (High) and an EPSS score indicating extremely high exploitability, it poses a severe risk, enabling full compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, including by ransomware campaigns, with public exploit code available in Metasploit and Nuclei templates, and has garnered significant community and media attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 8.7.4CPE matchmatch criteria | cpe:2.3:a:progress:ws_ftp_server:*:*:*:*:*:*:*:* | ||
>= 8.8, < 8.8.2CPE matchmatch criteria | cpe:2.3:a:progress:ws_ftp_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.