CVE-2026-16386
Received Received - Intake

Information Disclosure in Firefox WebGPU Component

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Mozilla Corporation

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

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-16386
EUVD
EUVD-2026-46223

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 153

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Exploitability

CWE
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

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

Detection Guidance

This vulnerability is specific to Firefox's Graphics: WebGPU component and was patched in Firefox 153. Detection requires checking the installed Firefox version. Run 'firefox --version' to verify if your version is below 153.

Impact Analysis

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

Compliance Impact

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

Mitigation Strategies

Update Firefox to version 153 or later immediately. If automatic updates are disabled, manually download and install the latest version from Mozilla's official website to patch the uninitialized memory issue.

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