8.8
High
CVE-2026-92058 Use-after-free in the Graphics component
Description
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 156 | earliest → < 156 | 156 |
| Firefox 153.3 | earliest → < 153.3 | 153.3 |
| Thunderbird 156 | earliest → < 156 | 156 |
| Thunderbird 153.3 | earliest → < 153.3 | 153.3 |