CVE-2026-100799
Received Received - Intake

Uninitialized Memory in Firefox Graphics WebGPU

Vulnerability report for CVE-2026-100799, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-29

Last updated on: 2026-09-29

Assigner: Mozilla Corporation

Description

Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 157.

CVSS Scores

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Meta Information

Published
2026-09-29
Last Modified
2026-09-29
Generated
2026-09-29
AI Q&A
2026-09-29
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 157

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability involves uninitialized memory in the Graphics: WebGPU component of Firefox. Uninitialized memory means memory that has not been cleared or set to a default value before use, which can lead to exposure of sensitive data or unexpected behavior.

Impact Analysis

This vulnerability could allow attackers to access sensitive information stored in memory or cause crashes and instability in the Firefox browser. It may also enable arbitrary code execution if exploited.

Mitigation Strategies

Update Firefox to version 157 or later to address the uninitialized memory issue in the Graphics: WebGPU component.

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