Intelligence online17 sources monitored8 actively exploited 7d26 published 24hChecked recently
Vulnerability record

CVE-2012-4792

Microsoft Internet Explorer Use-After-Free Vulnerability

HighExploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Internet Explorer, 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 Aug 13, 2024.

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

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012.

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

Affected products

ProductVendorAffected versionsSource
Internet ExplorerMicrosoft6; 7; 8KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2012-4792 scored CVSS 8.8: Microsoft Internet Explorer, Microsoft Internet Explorer Use-After-Free Vulnerability

    CISA lists this as exploited in the wild. Unpatched Internet Explorer systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2012-4792: Microsoft Internet Explorer, Microsoft Internet Explorer Use-After-Free Vulnerability

    An official fix is now available for Microsoft Internet Explorer. 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

  • learn.microsoft.com https://learn.microsoft.com/en-us/lifecycle/products/internet-explorer-11
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2012-4792
  • blog.fireeye.com http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html
  • blogs.technet.com http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx
  • blogs.technet.com http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-6…
  • eromang.zataz.com http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/
  • labs.alienvault.com http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0da…
  • packetstormsecurity.com http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.htm…
  • technet.microsoft.com http://technet.microsoft.com/security/advisory/2794220
  • kb.cert.org http://www.kb.cert.org/vuls/id/154201
  • us-cert.gov http://www.us-cert.gov/cas/techalerts/TA13-008A.html
  • us-cert.gov http://www.us-cert.gov/cas/techalerts/TA13-015A.html
  • docs.microsoft.com https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-008
  • github.com https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rb
  • oval.cisecurity.org https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16361
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4792