CVE-2026-12303

Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component

Medium · published June 16, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
12.1
In the wild
Unconfirmed
What it is

Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00222 · 12.1th percentile
Published
2026-06-16T11:52Z
EPSS history
Timeline
  • 16 JUN 11:52Z
    Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component
    cvelistv5