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Unrated severityNVD Advisory· Published Oct 14, 2009· Updated Jun 16, 2026

CVE-2009-0091

CVE-2009-0091

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."

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

27
  • Microsoft/.net Framework8 versions
    cpe:2.3:a:microsoft:.net_framework:1.0:sp3:*:*:*:*:*:*+ 7 more
    • cpe:2.3:a:microsoft:.net_framework:1.0:sp3:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:.net_framework:1.1:sp1:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:.net_framework:2.0:*:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:.net_framework:2.0:sp1:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:.net_framework:3.5:sp1:*:*:*:*:*:*
    • (no CPE)range: 2.0, 2.0 SP1, 3.5
  • Microsoft/Windows 2000
    cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
  • Microsoft/Windows 7
    cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*
  • Microsoft/Windows Server 2003
    cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
  • Microsoft/Windows Server 20089 versions
    cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*+ 8 more
    • cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x86:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:*:*:x32:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*
  • Microsoft/Windows4 versions
    cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_vista:*:*:x64:*:*:*:*:*
  • Microsoft/Windows Xp3 versions
    cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

3

News mentions

0

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