Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not properly validate function parameters, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka ".NET Framework Parameter Validation Vulnerability."
Conclusion & alert: CVE-2012-0163 is rated High Exploit Risk (86.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 54.23%, 98th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 18777 | exploit_db | edb | 2012-04-24 | Exploit-DB ↗ |
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 | 2026-05-16 | 54.12% | 54.23% | +0.10% |
| 2 | 2026-03-02 | 55.80% | 54.12% | -1.68% |
| 3 | 2025-03-30 | — | 55.80% | — |
Full EPSS history (19 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] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | .net_framework | 1.0 | cpe:2.3:a:microsoft:.net_framework:1.0:sp3:*:*:*:*:*:* |
| microsoft | .net_framework | 1.1 | cpe:2.3:a:microsoft:.net_framework:1.1:sp1:*:*:*:*:*:* |
| microsoft | .net_framework | 2.0 | cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:* |
| microsoft | .net_framework | 3.5 | cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* |
| microsoft | .net_framework | 3.5.1 | cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* |
| microsoft | .net_framework | 4.0 | cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:* |
| microsoft | .net_framework | 4.5 | cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:* |