Unknown vulnerability in the H.323 protocol implementation in Windows 98, Windows 2000, Windows XP, and Windows Server 2003 allows remote attackers to execute arbitrary code.
Conclusion & alert: CVE-2004-0117 is rated Moderate Risk (59.2/100): CVSS High severity, with high exploitation likelihood (EPSS 26.50%, 98th 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 | 2026-06-15 | 52.47% | 26.50% | -25.97% |
| 2 | 2025-12-28 | 36.28% | 52.47% | +16.19% |
| 3 | 2025-12-27 | — | 36.28% | — |
Full EPSS history (16 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | netmeeting | <= 3 | cpe:2.3:a:microsoft:netmeeting:*:*:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:* |
| microsoft | windows_2003_server | r2 | cpe:2.3:o:microsoft:windows_2003_server:r2:*:*:*:*:*:*:* |
| microsoft | windows_98 | — | cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:* |
| microsoft | windows_me | — | cpe:2.3:o:microsoft:windows_me:*:*:*:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:gold:*:*:*:*:*:* |