CVE-2026-4694
Received
Received - Intake
Integer Overflow in Firefox Graphics Component Causes Potential Crash
Publication date: 2026-03-24
Last updated on: 2026-04-13
Assigner: Mozilla Corporation
Description
Description
Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, 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 115.34.0 (exc) |
| mozilla | firefox | From 128.0 (inc) to 140.9.0 (exc) |
| mozilla | thunderbird | to 149.0 (exc) |
| mozilla | thunderbird | to 140.9.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-754 | The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. |
| CWE-190 | The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is caused by incorrect boundary conditions and an integer overflow in the Graphics component of Firefox. It affects versions of Firefox earlier than 149, Firefox ESR earlier than 115.34, and Firefox ESR earlier than 140.9.
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