CVE-2025-12380CRITICAL 9.8EPSS p19.7%

CVE-2025-12380CVE-2025-12380

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.28% probability of exploitation · percentile 19.7% · 2026-06-19T12:03:05Z
Published2025-10-28
Last modified2026-04-13

Underlying weaknesses· 1

CWE-416

References

  1. https://bugzilla.mozilla.org/show_bug.cgi?id=1993113
  2. https://www.mozilla.org/security/advisories/mfsa2025-86/

1

TypeTargetConfidenceTier
WeaknessUse After Freecwe-4160%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Mozilla Firefox Use-After-Free Vulnerability
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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.