Is CVE-2012-4792 being actively exploited?

Yes. CVE-2012-4792 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on July 23, 2024.

What is the CVSS score for CVE-2012-4792?

CVE-2012-4792 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2012-4792

HIGH · CVSS 8.8CISA KEV: actively exploitedEPSS 78.8%EU EUVD: exploited

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.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
EPSS score: 78.8% (100th percentile)
In CISA KEV: Yes, added July 23, 2024
In EU EUVD: Yes (EUVD-2012-4717)
Published: December 30, 2012
NVD last modified: June 16, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Microsoft Internet Explorer Use-After-Free Vulnerability

Added to the KEV catalog on July 23, 2024; federal remediation due August 13, 2024.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-4717 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

microsoft / internet explorer
microsoft / internet explorer
microsoft / internet explorer
microsoft / windows 7
microsoft / windows 7
microsoft / windows 7
microsoft / windows server 2003
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows vista
microsoft / windows xp
microsoft / windows xp
microsoft / windows xp

References

http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html(Broken Link)
http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx(Broken Link)
http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-6-7-and-8.aspx(Broken Link)
http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/(Third Party Advisory)
http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0day/(Broken Link)
http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.html(Third Party Advisory, VDB Entry)
http://technet.microsoft.com/security/advisory/2794220(Patch, Vendor Advisory)
http://www.kb.cert.org/vuls/id/154201(Third Party Advisory, US Government Resource)
http://www.us-cert.gov/cas/techalerts/TA13-008A.html(Third Party Advisory, US Government Resource)
http://www.us-cert.gov/cas/techalerts/TA13-015A.html(Third Party Advisory, US Government Resource)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-008(Patch, Vendor Advisory)
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rb(Third Party Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16361(Broken Link)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4792(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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