CVE-2026-12293

Modified Modified - Updated After Analysis

Use-after-free in Firefox Graphics WebGPU

Publication date: 2026-06-16

Last updated on: 2026-06-30

Assigner: Mozilla Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-16

Last Modified

2026-06-30

Generated

2026-07-06

AI Q&A

2026-06-16

EPSS Evaluated

2026-07-05

NVD

CVE-2026-12293

EUVD

EUVD-2026-37084

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	152

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-825	The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability is a use-after-free issue in the Graphics: WebGPU component of Firefox. A use-after-free vulnerability occurs when a program continues to use a pointer after the memory it points to has been freed, which can lead to unexpected behavior or exploitation.

This specific vulnerability was addressed and fixed in Firefox version 152.

Impact Analysis

Exploitation of a use-after-free vulnerability in a browser's graphics component could potentially allow an attacker to execute arbitrary code, cause a crash, or perform other malicious actions by manipulating the browser's memory.

If successful, this could compromise the security and stability of the affected Firefox browser.

Mitigation Strategies

The vulnerability was fixed in Firefox 152. To mitigate this vulnerability, you should update your Firefox browser to version 152 or later.

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