CVE-2026-6780
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 allows an attacker to cause the application to become unavailable or unresponsive during audio or video playback.
The issue was fixed in Firefox version 150.
How can this vulnerability impact me? :
This vulnerability can impact users by causing the Firefox browser to crash or become unresponsive when playing audio or video content, resulting in a denial-of-service condition.
This could disrupt normal browsing activities, especially if audio or video playback is critical to the user's tasks.
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.