The JIT compiler in Microsoft .NET Framework 4.0 on 64-bit platforms does not properly perform optimizations, which allows remote attackers to execute arbitrary code via a crafted .NET application that triggers memory corruption, aka ".NET Framework x64 JIT Compiler Vulnerability."
Conclusion & alert: CVE-2010-3228 is rated High Risk (74.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 57.70%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +2.59% 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 | 2025-12-28 | 55.12% | 57.70% | +2.59% |
| 2 | 2025-12-27 | 57.70% | 55.12% | -2.59% |
| 3 | 2025-10-28 | — | 57.70% | — |
Full EPSS history (25 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
: Per: http://www.microsoft.com/technet/security/Bulletin/MS10-077.mspx 'This vulnerability only affects the x64 and Itanium architectures.'
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | .net_framework | 4.0 | cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:* |