CVE-2026-117874
Received Received - Intake

Use-after-free in Firefox Internationalization Component

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Use-after-free in the Internationalization component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, 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-2026-117874
EUVD
EUVD-2026-111045

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 a use-after-free vulnerability in Firefox's Internationalization 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. It was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.

Impact Analysis

This vulnerability could allow an attacker to execute arbitrary code on your system by exploiting the use-after-free issue in Firefox's Internationalization component. This might lead to data theft, system compromise, or other malicious activities depending on the attacker's goals.

Mitigation Strategies

Update Firefox to version 159 or later, Firefox ESR to version 115.44 or later, or Firefox ESR to version 153.6 or later to address the use-after-free vulnerability in the Internationalization component.

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