CVE-2025-1943
High
Description
Memory safety bugs present in Firefox 135 and Thunderbird 135. 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 136 and Thunderbird 136.
SeverityHigh
CVSS8.2
Exploit probability—
Product
Mozilla Firefox
PublishedMar 4, 2025
First seenMar 4, 2025
Weakness typeCWE-122CWE-122
How to fix
Update
- mozilla firefox136.0 or later
- mozilla thunderbird136.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 136.0 | 136.0 |
| mozilla thunderbird | v < 136.0 | 136.0 |
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