CVE-2026-124857
Received Received - Intake

Use-after-free in Firefox Graphics Canvas2D

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: Mozilla Corporation

Description
Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
AI Q&A
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-124857
EUVD
EUVD-2026-121049

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 160
mozilla firefox esr

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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 is a use-after-free vulnerability in Firefox's Graphics: Canvas2D component. Use-after-free occurs when a program continues to use memory after it has been freed, potentially leading to crashes or arbitrary code execution.

Impact Analysis

An attacker could exploit this to crash your browser or run malicious code on your device. This may allow them to steal data, install malware, or take control of your system if you visit a specially crafted webpage.

Mitigation Strategies

Update Firefox to version 160 or later, Firefox ESR 115.45 or later, or Firefox ESR 153.7 or later to address the use-after-free vulnerability in the Graphics: Canvas2D component.

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