CVE-2023-4057
Critical
Description
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. 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 affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Mozilla Firefox
PublishedAug 1, 2023
First seenAug 1, 2023
How to fix
Update
- mozilla firefox116.0 or later
- mozilla firefox_esr115.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 116.0 | 116.0 |
| mozilla firefox_esr | v < 115.1 | 115.1 |
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