Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
CVSS Details
- CVSS 3.1 Base Score: 10
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade firefoxUpgrade thunderbird | Mar 27, 2026 | Mar 26, 2026 |
| Mfsa2026 20 | — | Upgrade to Mozilla Firefox version 149.0Upgrade to the latest version of Mozilla Firefox | Mar 27, 2026 | Mar 24, 2026 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 149.0 | Mar 27, 2026 | Mar 24, 2026 |
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