SOURCE FACT
Microsoft · Internet Explorer
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.
Required action
The impacted product is end-of-life and should be disconnected if still in use.
CISA notes
https://learn.microsoft.com/en-us/lifecycle/products/internet-explorer-11; https://nvd.nist.gov/vuln/detail/CVE-2012-4792
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