CVE-2012-1895: Microsoft .NET Framework

High severity, CVSS 9.3. EPSS: 22.6% chance of exploitation in the next 30 days.

The reflection implementation in Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5.1, and 4 does not properly enforce object permissions, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (aka XBAP) or (2) a crafted .NET Framework application, aka "Reflection Bypass Vulnerability."

Affected products

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

Published 2012-11-14. Last modified 2026-06-16.