CVE-2025-1938
Medium
Description
Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. 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, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mozilla Firefox
PublishedMar 4, 2025
First seenMar 4, 2025
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- mozilla firefox128.7.0, 135.0 or later
- mozilla thunderbird128.7.0, 135.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 128.7.0, v < 135.0 | 128.7.0, 135.0 |
| mozilla thunderbird | v < 128.7.0, 129.0 ≤ v < 135.0 | 128.7.0, 135.0 |
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