CVE-2021-30552
Google Chrome vulnerability analysis and mitigation

Overview

CVE-2021-30552 is a Use-after-free vulnerability discovered in the Extensions component of Google Chrome versions prior to 91.0.4472.101. The vulnerability was reported by David Erceg on April 20, 2021, and was addressed in a security update released by Google (Chrome Release).

Technical details

The vulnerability is classified as a Use-after-free (CWE-416) issue in the Extensions component of Google Chrome. It received a CVSS v3.1 Base Score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating a high severity vulnerability that requires user interaction (NVD).

Impact

If successfully exploited, this vulnerability could allow an attacker who convinces a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page, potentially leading to arbitrary code execution (NVD).

Mitigation and workarounds

The vulnerability was patched in Google Chrome version 91.0.4472.101. Users and administrators are advised to upgrade to this version or later. Various Linux distributions also released security updates to address this vulnerability, including Fedora and Gentoo (Gentoo Advisory, Fedora Update).

Additional resources


SourceThis report was generated using AI

Related Google Chrome vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-13230HIGH8.8
  • Google ChromeGoogle Chrome
  • chromium
NoYesNov 18, 2025
CVE-2025-13229HIGH8.8
  • Google ChromeGoogle Chrome
  • chromium
NoYesNov 18, 2025
CVE-2025-13228HIGH8.8
  • Google ChromeGoogle Chrome
  • cpe:2.3:a:google:chrome
NoYesNov 18, 2025
CVE-2025-13227HIGH8.8
  • Google ChromeGoogle Chrome
  • chromium
NoYesNov 18, 2025
CVE-2025-13992MEDIUM4.7
  • Google ChromeGoogle Chrome
  • chromium
NoYesDec 03, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management