CVE-2026-16384

Undergoing Analysis Undergoing Analysis - In Progress

Information Disclosure in Firefox Graphics WebGPU Component

Publication date: 2026-07-21

Last updated on: 2026-07-27

Assigner: Mozilla Corporation

Description

Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-21

Last Modified

2026-07-27

Generated

2026-08-10

AI Q&A

2026-07-21

EPSS Evaluated

2026-08-09

NVD

CVE-2026-16384

EUVD

EUVD-2026-46221

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	thunderbird	to 153.0 (exc)
mozilla	firefox	to 153.0.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-908	The product uses or accesses a resource that has not been initialized.

Attack-Flow Graph

Executive Summary

This vulnerability is an information disclosure issue caused by uninitialized memory in the Graphics: WebGPU component of Firefox. It was patched in Firefox version 153.

Detection Guidance

This vulnerability is specific to Firefox's Graphics: WebGPU component and was fixed in Firefox 153. Detection would require checking the installed Firefox version and examining memory initialization in WebGPU-related processes. No direct commands are provided in the context.

Impact Analysis

An attacker could exploit this flaw to access sensitive data that was previously stored in memory, potentially leading to unauthorized information disclosure.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, which may violate GDPR's data protection requirements or HIPAA's safeguards for protected health information.

Mitigation Strategies

Update Firefox to version 153 or later to address the uninitialized memory issue in the Graphics: WebGPU component.

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