CVE-2011-1253 Code injection in n/a

What is CVE-2011-1253?

CVE-2011-1253 is a critical code injection vulnerability in Microsoft .Net Framework, published on 12 Oct 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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."

Weakness: CWE-264

Which versions are affected by CVE-2011-1253?

It affects 2 products.

Products include Microsoft .Net Framework, Microsoft Silverlight.

How do I fix CVE-2011-1253?

No fix has been published for CVE-2011-1253 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2011-1253 being exploited?

There is no known exploitation of CVE-2011-1253 in the wild and no public exploit code.

Other vulnerabilities in Microsoft .Net Framework

• CVE-2020-0646 Microsoft .NET Framework Remote Code Execution Exploited Critical 9.8
• CVE-2017-8759 Microsoft .NET Framework Remote Code Execution Exploited High 7.8
• CVE-2015-1671 Microsoft Windows Remote Code Execution Exploited High 7.8
• CVE-2024-29059 Microsoft .NET Framework Information Disclosure Exploited High 7.5
• CVE-2014-4073 Privilege escalation in n/a Critical 10.0

All Microsoft .Net Framework vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-93jp-mm4x-pff3.