CVE-2026-12303
Received Received - Intake
Graphics: WebGPU Information Disclosure in Firefox

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: Mozilla Corporation

Description
Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-12303
EUVD
EUVD-2026-37094
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 152
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is an information disclosure issue caused by incorrect boundary conditions in the Graphics: WebGPU component of Firefox. Essentially, it means that due to improper handling of certain limits or boundaries in the WebGPU graphics processing, sensitive information could be exposed unintentionally.

The issue was addressed and fixed in Firefox version 152.

Impact Analysis

This vulnerability can lead to unintended disclosure of information through the WebGPU graphics component. An attacker might exploit the incorrect boundary conditions to access data that should be protected, potentially compromising user privacy or security.

Mitigation Strategies

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

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-12303. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart