CVE-2012-4777 Privilege escalation in n/a

What is CVE-2012-4777?

CVE-2012-4777 is a critical vulnerability in Microsoft .Net Framework, published on 14 Nov 2012. 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

The code-optimization feature in the reflection implementation in Microsoft .NET Framework 4 and 4.5 does not properly enforce object permissions, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (aka XBAP) or (2) a crafted .NET Framework application, aka "WPF Reflection Optimization Vulnerability."

Weakness: CWE-264

Which versions are affected by CVE-2012-4777?

It affects 1 product.

Products include Microsoft .Net Framework.

How do I fix CVE-2012-4777?

No fix has been published for CVE-2012-4777 yet. Limit exposure of the affected software until one is available.

Is CVE-2012-4777 being exploited?

There is no known exploitation of CVE-2012-4777 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-69xc-62mc-6v46.