CVE-2026-4715
Received
Received - Intake
Uninitialized Memory Vulnerability in Firefox Canvas2D Component
Publication date: 2026-03-24
Last updated on: 2026-04-13
Assigner: Mozilla Corporation
Description
Description
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | firefox | to 149.0 (exc) |
| mozilla | firefox | to 140.9.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-908 | The product uses or accesses a resource that has not been initialized. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves uninitialized memory in the Graphics: Canvas2D component of Firefox. It affects versions of Firefox earlier than 149 and Firefox ESR earlier than 140.9.
How can this vulnerability impact me? :
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
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