CVE-2026-92063: Denial-of-service in the Audio/Video component

Q: Which Firefox versions need to be updated?

The issue was fixed in Firefox 156. Firefox versions before the fixed release should be updated to Firefox 156 or a later release.

Q: What is the impact of successful exploitation?

The reported impact is denial of service in Firefox's Audio/Video component. The provided information does not describe data exposure or code execution.

Published Sep 15, 2026

Updated

Denial-of-service in the Audio/Video component. This vulnerability was fixed in Firefox 156.

Affected Software

1 affected component

Mozilla Firefox<156

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Firefox (Audio/Video component) to a version that resolves this vulnerability.
Fixed in 156

Event History

Sep 15, 2026

CVE Published

via MITRE·12:34 PM

Data Sourced

via MITRE·12:34 PM

Description

Frequently Asked Questions

Which Firefox versions need to be updated?

The issue was fixed in Firefox 156. Firefox versions before the fixed release should be updated to Firefox 156 or a later release.

What is the impact of successful exploitation?

The reported impact is denial of service in Firefox's Audio/Video component. The provided information does not describe data exposure or code execution.