Live › vulnerability › CVE-2021-30563
Go to dashboardA type confusion bug in the V8 JavaScript engine used by Chromium browsers lets a crafted HTML page corrupt heap memory. An attacker who gets a victim to load that page can potentially run code in the browser.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Google Chromium V8 | vendor | – | – |
Open the browser's version page (chrome://version or edge://version) and compare the Chromium version with the fixed release in the vendor advisory.
Update Google Chrome, Microsoft Edge, Opera or other Chromium-based browsers to a release that includes the vendor's fix for CVE-2021-30563.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
CISA required action: Apply updates per vendor instructions.
This page as .md · .json · in your agent: get_signal("CVE-2021-30563")
CISA KEV catalog, Creative Commons 0 · EPSS scores by FIRST, used with attribution · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.