7.5
High
CVE-2026-4708 Incorrect boundary conditions in the Graphics component
Description
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 149 | earliest → < 149 | 149 |
| Firefox 140.9 | earliest → < 140.9 | 140.9 |
| Thunderbird 149 | earliest → < 149 | 149 |
| Thunderbird 140.9 | earliest → < 140.9 | 140.9 |