CWE
264
Advisory Published
Updated

CVE-2011-1253

First published: Wed Oct 12 2011(Updated: )

Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5.1, and 4, and Silverlight 4 before 4.0.60831, does not properly restrict inheritance, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, (3) a crafted .NET Framework application, or (4) a crafted Silverlight application, aka ".NET Framework Class Inheritance Vulnerability."

Credit: secure@microsoft.com

Affected SoftwareAffected VersionHow to fix
Microsoft Silverlight=4.0.60531.0
All of
Microsoft .NET Framework 4=1.0-sp3
Any of
Microsoft Windows XP=2005-sp3
Microsoft Windows XP=2005-sp3
All of
Microsoft .NET Framework 4=1.1-sp1
Any of
Microsoft Windows Server 2003=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Vista=sp2
Microsoft Windows XP=sp3
Microsoft Windows XP=sp2
All of
Microsoft .NET Framework 4=2.0-sp2
Any of
Microsoft Windows Server 2003=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Vista=sp2
Microsoft Windows XP=sp3
Microsoft Windows XP=sp2
All of
Microsoft .NET Framework 4=3.5.1
Any of
Microsoft Windows 7
Microsoft Windows 7=sp1
Microsoft Windows 7=sp1
Microsoft Windows Server=r2
Microsoft Windows Server=r2
All of
Microsoft .NET Framework 4=4.0
Any of
Microsoft Windows Server 2003=sp2
Microsoft Windows 7=sp1
Microsoft Windows 7=sp1
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=r2
Microsoft Windows Server=r2
Microsoft Windows Vista=sp2
Microsoft Windows XP=sp3
Microsoft Windows XP=sp2
Microsoft .NET Framework 4=1.0-sp3
Microsoft Windows XP=2005-sp3
Microsoft Windows XP=2005-sp3
Microsoft .NET Framework 4=1.1-sp1
Microsoft Windows Server 2003=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Vista=sp2
Microsoft Windows Vista=sp2
Microsoft Windows XP=sp3
Microsoft Windows XP=sp2
Microsoft .NET Framework 4=2.0-sp2
Microsoft .NET Framework 4=3.5.1
Microsoft Windows 7
Microsoft Windows 7=sp1
Microsoft Windows 7=sp1
Microsoft Windows Server=r2
Microsoft Windows Server=r2
Microsoft .NET Framework 4=4.0

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Frequently Asked Questions

  • What is the severity of CVE-2011-1253?

    CVE-2011-1253 has a severity rating of Critical as it allows remote code execution.

  • How do I fix CVE-2011-1253?

    To fix CVE-2011-1253, install the security update provided by Microsoft for the affected .NET Framework and Silverlight versions.

  • Which software versions are affected by CVE-2011-1253?

    CVE-2011-1253 affects Microsoft .NET Framework versions 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5.1, and 4, along with Silverlight 4 versions before 4.0.60831.

  • What are the potential impacts of CVE-2011-1253?

    Exploitation of CVE-2011-1253 could allow an attacker to execute arbitrary code on the affected systems.

  • Is there a workaround for CVE-2011-1253?

    While Microsoft recommends applying the security update, disabling XAML browser applications can serve as a temporary workaround.

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