CVE-2026-92046
Received Received - Intake

Use-after-free in Firefox Graphics Component

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-92046
EUVD
EUVD-2026-78509

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 156
mozilla firefox_esr 153.3

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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 the Graphics component of Firefox. Use-after-free occurs when a program continues to use memory after it has been freed, potentially leading to crashes or arbitrary code execution. The issue was addressed in Firefox 156 and Firefox ESR 153.3.

Detection Guidance

Detection requires checking Firefox version. If using Firefox <156 or Firefox ESR <153.3, the system is vulnerable. Run 'firefox --version' to check installed version.

Impact Analysis

An attacker could exploit this to crash the browser or run malicious code on your system. This may lead to data theft, installation of malware, or unauthorized access to sensitive information if you visit a compromised website.

Mitigation Strategies

Update Firefox to version 156 or later and Firefox ESR to version 153.3 or later to address the use-after-free vulnerability in the Graphics component.

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