CVE-2012-0163: Microsoft .NET Framework

High severity, CVSS 9.3. EPSS: 38.3% chance of exploitation in the next 30 days.

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."

Affected products

• Microsoft .NET Framework: version 1.0 only; version 1.1 only; version 2.0 only; version 3.5 only; version 3.5.1 only; version 4.0 only; …

Published 2012-04-10. Last modified 2026-06-16.