Web Server 4D (WS4D) 3.6 stores passwords in plaintext in the Ws4d.4DD file, which allows attackers to gain privileges.
Conclusion & alert: CVE-2002-1521 is rated Low Risk (15.7/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-17 | 0.04% | 0.08% | +0.03% |
| 2 | 2023-03-07 | 0.89% | 0.04% | -0.84% |
| 3 | 2022-02-04 | — | 0.89% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mdg_computer_services | web_server_4d | 3.6 | cpe:2.3:a:mdg_computer_services:web_server_4d:3.6:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0128.html | Vendor Advisory |
| http://www.iss.net/security_center/static/10198.php | Vendor Advisory |
| http://www.securityfocus.com/bid/5803 | Vendor Advisory |