Wiz
Vulnerability DatabaseCVE-2021-4079

CVE-2021-4079: 
Google Chrome vulnerability analysis and mitigation

Overview

Out of bounds write vulnerability in WebRTC component of Google Chrome prior to version 96.0.4664.93 was discovered. The vulnerability, tracked as CVE-2021-4079, allowed remote attackers to potentially exploit heap corruption through crafted WebRTC packets (NVD, Chrome Release).

Technical details

The vulnerability is classified as an Out-of-bounds Write (CWE-787) with a CVSS v3.1 Base Score of 8.8 (HIGH), and vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability was reported by Brendon Tiszka on November 1, 2021, and was awarded a bounty of $8,500 (NVD, Chrome Release).

Impact

The vulnerability could lead to heap corruption, potentially allowing remote attackers to execute arbitrary code or cause denial of service conditions when a user interacts with maliciously crafted WebRTC packets (NVD).

Mitigation and workarounds

The vulnerability was patched in Google Chrome version 96.0.4664.93. Users and administrators are advised to update to this version or later. The fix was also incorporated into Debian systems through security update DSA-5046-1, and Gentoo systems through GLSA 202208-25 (Debian Advisory, Gentoo Advisory).

Additional resources

Source: This 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
  • cpe:2.3:a:google:chrome
NoYesNov 18, 2025
CVE-2025-13228HIGH8.8
  • Google ChromeGoogle Chrome
  • chromium
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

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

A community-led vulnerabilities database

Cloud Threat Landscape

Cloud Threat Landscape

A threat intelligence database

PEACH

PEACH

A tenant isolation framework

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
Get a demo