CVE-2025-12380

critical

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 affects Firefox < 144.0.2.

References

https://www.mozilla.org/security/advisories/mfsa2025-86/

https://bugzilla.mozilla.org/show_bug.cgi?id=1993113

Details

Source: Mitre, NVD

Published: 2025-10-28

Updated: 2025-10-29

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00018