What’s Vulnerable › Vulnerabilities

CVE-2013-3171

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 20.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-07-10 · updated 2026-06-16
• Weakness: CWE-94

Description

The serialization functionality in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5 SP1, 3.5.1, 4, and 4.5 does not properly check the permissions of delegate objects, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (XBAP) or (2) a crafted .NET Framework application that leverages a partial-trust relationship, aka "Delegate Serialization Vulnerability."

Affected products

• Microsoft .NET Framework: 2.0-sp2, 3.5, 3.5-sp1, 3.5.1, 4.0, 4.5

References

• http://www.us-cert.gov/ncas/alerts/TA13-190A
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-052
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16867
• http://www.us-cert.gov/ncas/alerts/TA13-190A
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-052
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16867

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