CVE-2021-30563highunder attackCWE-843

CVE-2021-30563: high-severity vulnerability in Google Chrome

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51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 8.8epss 9.0%
from disclosure to weapon
Published on NVDAug 3
CISA KEV+92d
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗
Not affected
1 product — because the vulnerable code is not present in the product
red_hat_products
Action required by CISAfederal deadline: 2021-11-17

Apply updates per vendor instructions.

In short

A type confusion vulnerability in Chrome's V8 engine allows attackers to create malicious web pages that corrupt memory, potentially taking over your browser.

Technical detail

Type confusion in V8 (CWE-843) permits remote code execution through crafted HTML pages by exploiting incorrect type checking, leading to heap memory corruption. Requires user interaction to visit a malicious site; impact includes arbitrary code execution with Chrome renderer process privileges.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Google · Chrome
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