CVE-2025-12380 | Starting with Firefox 142, it was possible for a compromised… | CVSS 9.8 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 was fixed in Firefox 144.0.2.

Metadata

CVE ID: CVE-2025-12380
State: PUBLISHED
Assigner: mozilla
Reserved: 2025-10-28 07:05 UTC
Published: 2025-10-28 14:06 UTC
Last updated: 2026-04-13 14:31 UTC
Primary CWE: CWE-416
CWE-416 Use After Free
Vendor / Product: Mozilla / Firefox
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Mozilla	Firefox	—	144.0.2 ≤ *

Weakness (CWE)

CWE	Source	Description
CWE-416	adp	CWE-416 Use After Free

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (2)