CVE-2009-0090: Microsoft .NET Framework

High severity, CVSS 9.3. EPSS: 21% chance of exploitation in the next 30 days.

Microsoft .NET Framework 1.0 SP3, 1.1 SP1, and 2.0 SP1 does not properly validate .NET verifiable code, which allows remote attackers to obtain unintended access to stack memory, and execute arbitrary code, via (1) a crafted XAML browser application (XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka "Microsoft .NET Framework Pointer Verification Vulnerability."

Affected products

• Microsoft .NET Framework: version 1.1 only; version 2.0 only; version 3.5 only; version 1.0 only
• Microsoft Windows 2000: any version
• Microsoft Windows 7: affected versions not specified
• Microsoft Windows Server 2003: any version
• Microsoft Windows Server 2008: any version; affected versions not specified
• Microsoft Windows Vista: any version
• Microsoft Windows XP: any version; affected versions not specified

Published 2009-10-14. Last modified 2026-06-16.