Serv-U FTP server 3.0, 3.1 and 4.0.0.4 does not accept new connections while validating user folder access rights, which allows remote attackers to cause a denial of service (no new connections) via a series of MKD commands.
Conclusion & alert: CVE-2002-2393 is rated Moderate Risk (56.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 7.29%, 91th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +5.97% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
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 | 2025-08-22 | 1.32% | 7.29% | +5.97% |
| 2 | 2025-03-30 | 1.46% | 1.32% | -0.13% |
| 3 | 2025-03-29 | — | 1.46% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| solarwinds | serv-u_file_server | 3.1.0.0 | cpe:2.3:a:solarwinds:serv-u_file_server:3.1.0.0:*:*:*:*:*:*:* |
| solarwinds | serv-u_file_server | 4.0.0.4 | cpe:2.3:a:solarwinds:serv-u_file_server:4.0.0.4:*:*:*:*:*:*:* |