Vulnerability record

CVE-2013-0074

Microsoft Silverlight Double Dereference Vulnerability

Severity: HighExploitation: Exploitation confirmedCISA KEV Used by ransomware
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Silverlight, fix it now.

CISA required action: The impacted product is end-of-life and should be disconnected if still in use.

US federal civilian agencies must remediate by Jun 15, 2022.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

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."

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorAffected versionsFixed inSource
SilverlightMicrosoft>= 5.0, < 5.1.20125.05.1.20125.0KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2013-0074 scored CVSS 7.8: Microsoft Silverlight, Microsoft Silverlight Double Dereference Vulnerability

    CISA lists this as exploited in the wild and known to be used in ransomware campaigns. Unpatched Silverlight systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2013-0074: Microsoft Silverlight, Microsoft Silverlight Double Dereference Vulnerability

    An official fix is now available for Microsoft Silverlight. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2013-0074
  • us-cert.gov http://www.us-cert.gov/ncas/alerts/TA13-071A
  • docs.microsoft.com https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-022
  • oval.cisecurity.org https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16516
  • oval.cisecurity.org https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16565
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-0074