What is CVE-2021-30563?

CVE-2021-30563 is a type confusion vulnerability in the Google Chromium V8 Engine that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Which software is affected by CVE-2021-30563?

Web browsers that utilize Chromium, including Google Chrome and Microsoft Edge, are affected by CVE-2021-30563.

How can CVE-2021-30563 be exploited?

CVE-2021-30563 can be exploited by a remote attacker via a crafted HTML page to potentially cause heap corruption.

What is the severity of CVE-2021-30563?

CVE-2021-30563 has a severity rating of 8.8 (high).

How can I fix CVE-2021-30563?

To fix CVE-2021-30563, update your web browser to the latest version provided by the vendor.

Vulnerability/
CVE-2021-30563

Exploited

high

8.8

CWE

843

12/7/2021

3/8/2021

3/8/2024

CVE-2021-30563: Google Chromium V8 Type Confusion Vulnerability

First published: Mon Jul 12 2021(Updated: )

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.

Credit: chrome-cve-admin@google.com Anonymous chrome-cve-admin@google.com

Affected Software	Affected Version	How to fix
Google Chrome	<91.0.4472.164
Google Chrome	<91.0.4472.164	91.0.4472.164
Google Chromium V8
	<91.0.4472.164

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

990899800226727119

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

What is CVE-2021-30563?
CVE-2021-30563 is a type confusion vulnerability in the Google Chromium V8 Engine that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Which software is affected by CVE-2021-30563?
Web browsers that utilize Chromium, including Google Chrome and Microsoft Edge, are affected by CVE-2021-30563.
How can CVE-2021-30563 be exploited?
CVE-2021-30563 can be exploited by a remote attacker via a crafted HTML page to potentially cause heap corruption.
What is the severity of CVE-2021-30563?
CVE-2021-30563 has a severity rating of 8.8 (high).
How can I fix CVE-2021-30563?
To fix CVE-2021-30563, update your web browser to the latest version provided by the vendor.

agent/type
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agent/title
agent/weakness
agent/description
exploited/true
collector/chrome-releases
agent/software-canonical-lookup
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collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/event
collector/cisa-known-exploited
source/CISA
agent/references
agent/tags
collector/nvd-cve
source/NVD
vendor/google
canonical/google chrome
canonical/google chromium v8

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