Buffer overflow in the Office Web Components (OWC) package installer used by Microsoft Commerce Server 2000 allows remote attackers to cause the process to fail or run arbitrary code in the LocalSystem security context via certain input to the OWC package installer.
Conclusion & alert: CVE-2002-0621 is rated Moderate Risk (50.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 16.67%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. 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 | 2025-03-30 | 19.60% | 16.67% | -2.93% |
| 2 | 2025-03-29 | 16.67% | 19.60% | +2.93% |
| 3 | 2025-03-17 | — | 16.67% | — |
Full EPSS history (10 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 |
|---|---|---|---|
| microsoft | commerce_server | 2000 | cpe:2.3:a:microsoft:commerce_server:2000:*:*:*:*:*:*:* |
| microsoft | commerce_server | 2000 | cpe:2.3:a:microsoft:commerce_server:2000:sp1:*:*:*:*:*:* |
| microsoft | commerce_server | 2000 | cpe:2.3:a:microsoft:commerce_server:2000:sp2:*:*:*:*:*:* |