CVE-2026-117888
Received Received - Intake

Uninitialized Memory in Firefox Graphics Canvas2D

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.

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Meta Information

Published
2026-10-27
Last Modified
2026-10-27
Generated
2026-10-27
AI Q&A
2026-10-27
EPSS Evaluated
N/A
NVD
CVE-2026-117888
EUVD
EUVD-2026-111059

Affected Vendors & Products

Currently, no data is known.

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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: Canvas2D 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 or cause crashes in the affected software. Users running vulnerable versions of Firefox may be at risk of data leaks or system instability.

Mitigation Strategies

Update Firefox to version 159 or later and Firefox ESR to version 153.6 or later to address the uninitialized memory issue in Graphics: Canvas2D.

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