Live › vulnerability › CVE-2021-21224
Go to dashboardA type confusion bug in the Chromium V8 JavaScript engine lets a remote attacker run code inside the browser sandbox by serving a crafted HTML page. It is listed as actively exploited in the wild.
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 chrome://version (or edge://version, opera://about) and compare the version to the vendor fixed release.
Update Chrome, Edge, Opera or any other Chromium-based browser to a release that includes the vendor fix, as CISA requires.
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 execute code inside a sandbox 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-2021-21224")
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.