CVE-2026-12293

Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2039568	Permissions 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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox:::::-:::*
	cpe:2.3:a:mozilla:thunderbird:::::-:::*

History

26 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Uso después de liberación en el componente Gráficos: WebGPU. Esta vulnerabilidad se corrigió en Firefox 152 y Thunderbird 152.

Information

Published : 2026-06-16 13:16

Updated : 2026-10-26 13:10

NVD link : CVE-2026-12293

Mitre link : CVE-2026-12293

CVE.ORG link : CVE-2026-12293

JSON object : View

Products Affected

mozilla

firefox
thunderbird

CWE

CWE-416

Use After Free

CWE-825

Expired Pointer Dereference

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