What’s Vulnerable › Vulnerabilities

CVE-2013-3896: Microsoft Silverlight Information Disclosure Vulnerability

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-05-25
• EPSS: 68.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-10-09 · updated 2026-06-16

Description

Microsoft Silverlight 5 before 5.1.20913.0 does not properly validate pointers during access to Silverlight elements, which allows remote attackers to obtain sensitive information via a crafted Silverlight application, aka "Silverlight Vulnerability."

Affected products

• Microsoft Silverlight: from 5.0 before 5.1.20913.0 — fixed in 5.1.20913.0

How to fix

Upgrade to a fixed version: Microsoft Silverlight 5.1.20913.0. Check the vendor advisory for mitigations.

References

• http://www.us-cert.gov/ncas/alerts/TA13-288A
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-087
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19003
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19055
• http://www.us-cert.gov/ncas/alerts/TA13-288A
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-087
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19003
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19055
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3896

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