CVE-2026-2801
High
Description
Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Mozilla Firefox
PublishedFeb 24, 2026
First seenFeb 24, 2026
Weakness typeCWE-754CWE-754
How to fix
Update
- mozilla firefox148.0 or later
- mozilla thunderbird148.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 148.0 | 148.0 |
| mozilla thunderbird | v < 148.0 | 148.0 |
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