CVE-2026-92042
Received Received - Intake

DOM Content Process Race Condition in Firefox

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Race condition in the DOM: Content Processes 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-2026-92042
EUVD
EUVD-2026-78505

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 race condition vulnerability in Firefox's DOM Content Processes component. A race condition occurs when the behavior of software depends on the sequence or timing of uncontrollable events, potentially leading to unexpected results. It was fixed in Firefox version 156 and Firefox ESR version 153.3.

Impact Analysis

A race condition could allow attackers to manipulate the browser's behavior, potentially leading to crashes, data corruption, or unauthorized access to sensitive information. Users running vulnerable versions should update Firefox immediately.

Mitigation Strategies

Update Firefox to version 156 or later and Firefox ESR to version 153.3 or later to address the race condition in the DOM Content Processes component.

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