CVE-2026-2759
Received
Received - Intake
Boundary Error in Firefox ImageLib Causes Potential Memory Corruption
Publication date: 2026-02-24
Last updated on: 2026-04-13
Assigner: Mozilla Corporation
Description
Description
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | firefox | to 148.0 (exc) |
| mozilla | thunderbird | to 148.0 (exc) |
| mozilla | firefox | to 115.33.0 (exc) |
| mozilla | firefox | From 128.0 (inc) to 140.8.0 (exc) |
| mozilla | thunderbird | to 140.8.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-1384 | The product does not properly handle unexpected physical or environmental conditions that occur naturally or are artificially induced. |
Attack-Flow Graph
AI Powered Q&A
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Can you explain this vulnerability to me?
This vulnerability involves incorrect boundary conditions in the Graphics: ImageLib component of Firefox. It affects versions of Firefox earlier than 148, Firefox ESR versions earlier than 115.33, and Firefox ESR versions earlier than 140.8.
How can this vulnerability impact me? :
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