CVE-2025-12380
Last modified
CVE-2025-12380 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Starting with Firefox 142, it was possible for a compromised child process to trigger a use-after-free in the GPU or browser process using WebGPU-related IPC calls. This may have been usable to escape the child process sandbox. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
Starting with Firefox 142, it was possible for a compromised child process to trigger a use-after-free in the GPU or browser process using WebGPU-related IPC calls. This may have been usable to escape the child process sandbox. This vulnerability was fixed in Firefox 144.0.2.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | >= 142.0, < 144.0.2 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1993113Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-86/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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