CVE-2026-12325
Medium
Description
Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mozilla Firefox
PublishedJun 16, 2026
First seenJun 16, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- mozilla firefox115.37.0, 152.0.0, 140.12.0 or later
- mozilla thunderbird152.0.0, 140.12.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 115.37.0, v < 152.0.0, 140.0 ≤ v < 140.12.0 | 115.37.0, 152.0.0, 140.12.0 |
| mozilla thunderbird | v < 152.0.0, 140.0 ≤ v < 140.12.0 | 152.0.0, 140.12.0 |
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