CVE-2025-14861
High
Description
Memory safety bugs present in Firefox 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 146.0.1.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Mozilla Firefox
PublishedDec 18, 2025
First seenDec 18, 2025
Weakness typeCWE-119Memory buffer bounds error
How to fix
Update
- mozilla firefox146.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 146.0.1 | 146.0.1 |
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