Vulnerability Description
Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 152.0.0 |
| Mozilla | Thunderbird | < 152.0.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2039568Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-57/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-60/Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-12293
- https://bugzilla.redhat.com/show_bug.cgi?id=2489216
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12293.json
FAQ
What is CVE-2026-12293?
CVE-2026-12293 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
How severe is CVE-2026-12293?
CVE-2026-12293 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-2026-12293?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Thunderbird.