VULNERABILITY INTELLIGENCE

CVE-2009-0091

CVSS score9.3 HIGH
EPSS probability25.81%
CISA KEVNot currently listed
Published2009-10-14
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:C/I:C/A:C

Description

Microsoft .NET Framework 2.0, 2.0 SP1, and 3.5 does not properly enforce a certain type-equality constraint in .NET verifiable code, which allows remote attackers to 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 Type Verification Vulnerability."

Weakness classification

  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Primary references