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CVE-2021-30563

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.

Basic Information

CVE State
PUBLISHED
Reserved Date
April 13, 2021
Published Date
August 03, 2021
Last Updated
July 30, 2025
Vendor
Google
Product
Chrome
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.
Tags
cisa

CVSS Scores

CVSS v3.1

8.8 - HIGH

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0

6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

SSVC Information

Exploitation
active
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2021-11-03 00:00:00 UTC) Source

References

https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html https://crbug.com/1228407

Known Exploited Vulnerability Information

Source Added Date
CISA 2021-11-03 00:00:00 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel