---
id: "CVE-2019-13720"
kind: "vulnerability"
aliases: ["CVE-2019-13720"]
title: "Google Chrome WebAudio: Google Chrome WebAudio Use-After-Free Vulnerability"
severity: "high"
cvss: 8.8
epss: 0.49421
exploited: true
status: "open"
category: "runtime"
products: [{"name": "Google Chrome WebAudio", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["browsers", "chrome", "exploited", "linux", "macos", "runtime", "windows"]
not_affected_if: ["chrome-already-updated"]
published_at: "2019-11-25T15:15:33+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T21:57:35+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-13720", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-13720", "first_seen_at": "2026-10-23T19:13:45+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-13720", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Google Chrome WebAudio: Google Chrome WebAudio Use-After-Free Vulnerability

Google Chrome's WebAudio component has a use-after-free bug that corrupts heap memory when a page is crafted to trigger it. A remote attacker who gets a victim to load a malicious HTML page can potentially run code in the browser.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Google Chrome WebAudio affected ? fixed ?

## How to check

Open chrome://version in each browser install and compare the version to the fixed release in the vendor advisory; sources do not give a version number.

## Fix

Update Google Chrome to the latest stable release per vendor instructions; the exact fixed version is unknown from the sources.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-13720
- 2026-10-23T19:13:45+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2019-13720
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2019-13720

## From the sources

Google Chrome WebAudio contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CISA required action: Apply updates per vendor instructions.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_