Array index vulnerability in the Event System in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 allows remote authenticated users to execute arbitrary code via a crafted event subscription request that is used to access an array of function pointers.
Conclusion & alert: CVE-2008-1456 is rated High Risk (65.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 28.02%, 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 | 66.29% | 28.02% | -38.28% |
| 2 | 2025-12-28 | 63.10% | 66.29% | +3.19% |
| 3 | 2025-12-27 | — | 63.10% | — |
Full EPSS history (16 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | windows-nt | 2008 | cpe:2.3:o:microsoft:windows-nt:2008:*:*:*:*:*:*:* |
| microsoft | windows-nt | vista | cpe:2.3:o:microsoft:windows-nt:vista:*:gold:*:*:*:*:* |
| microsoft | windows-nt | xp | cpe:2.3:o:microsoft:windows-nt:xp:sp3:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* |
| microsoft | windows_2003_server | — | cpe:2.3:o:microsoft:windows_2003_server:*:sp1:*:*:*:*:*:* |
| microsoft | windows_2003_server | — | cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:* |
| microsoft | windows_vista | — | cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:* |