CVE-2025-12380

CRITICAL 9.8

Use-after-free in WebGPU internals triggered from a compromised child process

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	mozilla
Product	firefox
Ecosystems	Browser JavaScript
Industries	Technology
Published	Oct 28, 2025
Last Updated	Apr 13, 2026

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Affected Versions

Mozilla / Firefox

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Oskar L