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Home GoogleCVE-2021-21166

High

8.8CVSS

CVE-2021-21166

Vendor:Google

Published: 9 Mar 2021

Updated 6mo ago

Generated remediation guidance and an executive summary. No account required.

Description

Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-362 · Race Condition CWE-362 · Race Condition

Metadata

Primary Vendor: GOOGLE
Published: 3/9/2021
Last Modified: 10/24/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

google : chromefedoraproject : fedorafedoraproject : fedorafedoraproject : fedoradebian : debian_linux

Remediation Guidance

Executive Summary

View on NIST NVD

Fix CVE-2021-21166 - HIGH google chrome | CVEDatabase.com

Related reading

Use CWE-362, Google vendor hub and Chrome product page to widen CVE-2021-21166 into its surrounding weakness, vendor, and product context.

Compare it with CVE-2026-6920, CVE-2026-6919 and CVE-2026-6363 for nearby disclosures in the same product family. Additional editorial context is available in The Weekly Cybersecurity Brief: February 27th, 2026.