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CVE-2011-0664

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 16.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-06-16 · updated 2026-06-16
• Weakness: CWE-20

Description

Microsoft .NET Framework 2.0 SP1 and SP2, 3.5 Gold and SP1, 3.5.1, and 4.0, and Silverlight 4 before 4.0.60531.0, does not properly validate arguments to unspecified networking API functions, 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 Array Offset Vulnerability."

Affected products

• Microsoft .NET Framework: 4.0, 3.5.1, 2.0-sp2, 3.5-sp1, 2.0-sp1, 3.5
• Microsoft Silverlight: 4.0.60310.0

References

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-039
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12105
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-039
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12105

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