CVE-2012-4792
KEVMicrosoft Internet Explorer Use-After-Free Vulnerability
Description
Microsoft Internet Explorer contains a use-after-free vulnerability that allows a remote attacker 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.
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.
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HPublishedDec 30, 2012
Last modifiedJun 16, 2026
Added to KEVJul 23, 2024
Remediation dueAug 13, 2024
References
- blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.htmlBroken Link
- blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspxBroken Link
- blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-6-7-and-8.aspxBroken Link
- eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/Third Party Advisory
- labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0day/Broken Link
- packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.htmlThird Party AdvisoryVDB Entry
- technet.microsoft.com/security/advisory/2794220PatchVendor Advisory
- kb.cert.org/vuls/id/154201Third Party AdvisoryUS Government Resource
- us-cert.gov/cas/techalerts/TA13-008A.htmlThird Party AdvisoryUS Government Resource
- us-cert.gov/cas/techalerts/TA13-015A.htmlThird Party AdvisoryUS Government Resource
- docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-008PatchVendor Advisory
- github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rbThird Party Advisory
0 recent articles mention this CVE
82
Risk assessment · Critical
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 804 days
- CVSS
- 8.8 HIGH
- EPSS (30-day exploit probability)
- 78.8% · top 1% of all CVEs
- Weakness
- CWE-416
- Attack vector
- Network, remotely reachable
Recommended actions
- 1.The impacted product is end-of-life and should be disconnected if still in use.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.