CVE-2021-30632

8.8 HIGH CISA KEV - Actively Exploited

Published: October 08, 2021 Modified: October 24, 2025

Description

Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html

Source: chrome-cve-admin@google.com

Third Party Advisory VDB Entry

https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html

Source: chrome-cve-admin@google.com

Release Notes

https://crbug.com/1247763

Source: chrome-cve-admin@google.com

Permissions Required

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/

Source: chrome-cve-admin@google.com

Release Notes

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/

Source: chrome-cve-admin@google.com

Release Notes

http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html