CVE-2021-30563 is a vulnerability in Google Chrome
Published on August 3, 2021

Type Confusion in V8 in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This Google Chrome Browser V8 Arbitrary Code Execution vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Type Confusion in V8 in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

The following remediation steps are recommended / required by November 17, 2021: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2021-30563 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 2.8 out of four. The potential impact of an exploit of this vulnerability is considered to be very high.

What is an Object Type Confusion Vulnerability?

The program allocates or initializes 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.

CVE-2021-30563 has been classified to as an Object Type Confusion vulnerability or weakness.

Products Associated with CVE-2021-30563

You can be notified by stack.watch whenever vulnerabilities like CVE-2021-30563 are published in these products:

Google Chrome

What versions of Chrome are vulnerable to CVE-2021-30563?