The webmail service in 602 Lan Suite 2004.0.04.0909 and earlier allows remote attackers to cause a denial of service (CPU and memory consumption) by sending a POST request with a large Content-Length value, then disconnecting without sending that amount of data.
Conclusion & alert: CVE-2004-1501 is rated Moderate Risk (43.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.26%). Mandatory action: Review affected assets and schedule 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 | 2026-06-15 | 0.63% | 1.26% | +0.62% |
| 2 | 2025-03-30 | 0.67% | 0.63% | -0.04% |
| 3 | 2025-03-29 | — | 0.67% | — |
Full EPSS history (6 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 |
|---|---|---|---|
| software602 | 602lan_suite | <= 2004.0.04.0909 | cpe:2.3:a:software602:602lan_suite:*:*:*:*:*:*:*:* |