CVE-2013-3896

Microsoft Silverlight Information Disclosure

5.5 MEDIUMActively exploited (CISA KEV)EPSS 68.0%

Published9 Oct 2013
Added to CISA KEV25 May 2022
Remediation due15 Jun 2022

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."

CVSS 3.1 breakdown

Attack vectorLocal

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

Microsoft Silverlight≥ 5.0 < 5.1.20913.0

Remediation

Fixed in

Microsoft Silverlight≥ 5.1.20913.0

Patch & vendor advisories

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-087

References

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-087PatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19003Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19055Broken Link
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3896US Government Resource
http://www.us-cert.gov/ncas/alerts/TA13-288AThird Party AdvisoryUS Government Resource

Frequently asked

Is CVE-2013-3896 being actively exploited?

Yes. CVE-2013-3896 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 25 May 2022.

How severe is CVE-2013-3896?

CVE-2013-3896 has a CVSS 3.1 base score of 5.5, rated medium. EPSS estimates a 68.0% probability of exploitation.

Which products are affected by CVE-2013-3896?

Affected products include Microsoft Silverlight.

How do I fix CVE-2013-3896?

Upgrade affected software to a fixed version, for example Microsoft Silverlight 5.1.20913.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2013-3896 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.