CVE-2025-12380

—

CVSS 3.1

9.8 critical

EPSS

<1%p24

Published

Oct 28, 2025 (Oct 28, 2025)

Modified

Jun 17, 2026

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.

Vendors: mozilla
Products: firefox
Weakness: CWE-416
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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