CVE-2026-117910
Received Received - Intake

Memory Corruption in Firefox JavaScript Engine

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Invalid pointer in the JavaScript Engine 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-2026-117910
EUVD
EUVD-2026-110941

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is an invalid pointer issue in Firefox's JavaScript Engine component. It was patched in Firefox version 159 and Firefox ESR version 153.6.

Detection Guidance

This vulnerability is specific to the Firefox JavaScript Engine and requires checking the installed version of Firefox. Run 'firefox --version' to verify if your version is below 159 or Firefox ESR below 153.6.

Impact Analysis

An invalid pointer flaw could allow attackers to execute arbitrary code or crash the browser, potentially leading to data theft or system compromise if exploited.

Mitigation Strategies

Update Firefox to version 159 or Firefox ESR to version 153.6 or later immediately. Disable JavaScript if not required or use a browser with a patched engine until updates are applied.

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