CVE-2013-0004: Microsoft .NET Framework

High severity, CVSS 9.3. EPSS: 21.4% chance of exploitation in the next 30 days.

Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not properly validate the permissions of objects in memory, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (XBAP) or (2) a crafted .NET Framework application, aka "Double Construction Vulnerability."

Affected products

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

Published 2013-01-09. Last modified 2026-06-16.