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."
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
x_refsource_ms
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-078
Third Party Advisory, VDB Entry vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13069
Scores
EPSS
0.1324
EPSS Percentile
95.9%
Details
CWE
CWE-264
Status
published
Products (6)
microsoft/.net_framework
1.0 sp3
microsoft/.net_framework
1.1 sp1
microsoft/.net_framework
2.0 sp2
microsoft/.net_framework
3.5.1
microsoft/.net_framework
4.0
microsoft/silverlight
4.0.60531.0
Published
Oct 12, 2011
Tracked Since
Feb 18, 2026