CVE-2013-0074

Microsoft Silverlight Double Dereference

7.8 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 78.9%

Published12 Mar 2013
Added to CISA KEV25 May 2022
Remediation due15 Jun 2022

Description

Microsoft Silverlight 5, and 5 Developer Runtime, before 5.1.20125.0 does not properly validate pointers during HTML object rendering, which allows remote attackers to execute arbitrary code via a crafted Silverlight application, aka "Silverlight Double Dereference Vulnerability."

CVSS 3.1 breakdown

Attack vectorLocal

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Microsoft Silverlight≥ 5.0 < 5.1.20125.0

Remediation

Fixed in

Microsoft Silverlight≥ 5.1.20125.0

Patch & vendor advisories

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-022

References

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-022PatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16516Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16565Broken Link
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-0074US Government Resource
http://www.us-cert.gov/ncas/alerts/TA13-071AThird Party AdvisoryUS Government Resource

Frequently asked

Is CVE-2013-0074 being actively exploited?

Yes. CVE-2013-0074 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 25 May 2022. It has been used in ransomware campaigns.

How severe is CVE-2013-0074?

CVE-2013-0074 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 78.9% probability of exploitation.

Which products are affected by CVE-2013-0074?

Affected products include Microsoft Silverlight.

How do I fix CVE-2013-0074?

Upgrade affected software to a fixed version, for example Microsoft Silverlight 5.1.20125.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2013-0074 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.