Description
Sandbox escape due to integer overflow in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143.0.3.
Metrics
CVSS 3.1 8.6/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:LWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | — |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1987246Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-80/Vendor Advisory
Timeline
- Published
- Sep 30, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Modified