CVE-2026-12293

CRITICAL

Use-after-free in the Graphics: WebGPU component

Title source: cna
STIX 2.1

Description

Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

References (6)

Core 6

Scores

CVSS v3 9.8
EPSS 0.0030
EPSS Percentile 22.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-416 CWE-825
Status published
Products (4)
mozilla/firefox < 152.0.0
Mozilla/Firefox 152
mozilla/thunderbird < 152.0.0
Mozilla/Thunderbird 152
Published Jun 16, 2026
Tracked Since Jun 16, 2026