CVE-2021-30563 Google Chromium V8 Type Confusion
A remote attacker can exploit heap corruption in the V8 engine via a crafted HTML page, potentially leading to arbitrary code execution.
- Exploited in the wild
- Since 3 Nov 2021
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-30563?
CVE-2021-30563 is a high-severity memory corruption vulnerability in Google Chrome, published on 3 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-843
Which versions are affected by CVE-2021-30563?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2021-30563?
Upgrade to a fixed version. US federal agencies must fix it by 17 Nov 2021.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-30563 being exploited?
Yes. Attackers have exploited CVE-2021-30563 in the wild since at least 3 Nov 2021.
Other vulnerabilities in Google Chrome
Sources
Also known as CLEANSTART-2024-DU66759, DEBIAN-CVE-2021-30563, GHSA-m4g6-h6xh-8xr8, UBUNTU-CVE-2021-30563.