Security Advisory 2022-085

Release Date:

Type Confusion Vulnerability in Chrome Browser



  • 5/12/2022 --- v1.0 -- Initial publication


On December 2, 2022, Google released a new version of its Chrome browser fixing a high-severity flaw, identified by CVE-2022-4262 [1] that could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Google is aware of reports that an exploit for CVE-2022-4262 exists in the wild. It is highly recommended to apply the update.

Technical Details

The CVE-2022-4262 is a type confusion in the V8 JavaScript engine. Type confusion vulnerabilities arise when a program allocates or initialises a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type [2], potentially allowing an attacker to perform out-of-bound memory access.

Google keeps the access to bug details and links restricted until a majority of users are updated with a fix.

Affected Products

  • Google Chrome for Mac, Windows and Linux before version 108.0.5359.94.


CERT-EU recommends updating to the latest version.




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