Microsoft NetMeeting 3.01 2000 before SP4 allows remote attackers to cause a denial of service (shutdown of NetMeeting conference) via malformed packets, as demonstrated via the chat conversation.
Conclusion & alert: CVE-2003-0506 is rated Moderate Risk (57.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 10.83%, 95th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.75% 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 | 2026-06-15 | 7.08% | 10.83% | +3.75% |
| 2 | 2025-03-30 | 7.70% | 7.08% | -0.62% |
| 3 | 2025-03-29 | — | 7.70% | — |
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 | netmeeting | 3.0.1 | cpe:2.3:a:microsoft:netmeeting:3.0.1:*:*:*:*:*:*:* |