Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | >= 142.0, < 144.0.2 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1993113Permissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-86/Vendor Advisory
FAQ
What is CVE-2025-12380?
CVE-2025-12380 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...
How severe is CVE-2025-12380?
CVE-2025-12380 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-12380?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.