CVE-2026-6781
Denial-of-Service in Firefox Audio/Video Playback Component
Publication date: 2026-04-21
Last updated on: 2026-04-22
Assigner: Mozilla Corporation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | firefox | to 150.0 (exc) |
| mozilla | thunderbird | to 150.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-400 | The product does not properly control the allocation and maintenance of a limited resource. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a denial-of-service issue in the Audio/Video Playback component of Mozilla Firefox. It means that an attacker could cause the application to become unresponsive or crash when handling audio or video playback.
How can this vulnerability impact me? :
The impact of this vulnerability is that it can cause Firefox to crash or become unresponsive during audio or video playback, potentially disrupting your browsing experience or any media consumption within the browser.
What immediate steps should I take to mitigate this vulnerability?
The vulnerability was fixed in Firefox 150. To mitigate this vulnerability, you should update your Firefox browser to version 150 or later.