CVE-2026-92070
Received Received - Intake

Information Disclosure in Firefox Networking Component

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Information disclosure in the Networking 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-2026-92070
EUVD
EUVD-2026-78455

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 an information disclosure vulnerability in Firefox's Networking component. It was patched in Firefox 156 and Firefox ESR 153.3. The issue allows unauthorized access to sensitive network-related data that should remain private.

Detection Guidance

Detection requires checking Firefox version. If using Firefox 156 or later, or Firefox ESR 153.3 or later, the vulnerability is patched. Run 'firefox --version' to check. If older versions are detected, update immediately.

Impact Analysis

If exploited, this vulnerability could allow attackers to access confidential network information, potentially leading to data breaches, unauthorized network access, or exposure of sensitive user data transmitted through the browser.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, and other privacy regulations by exposing personal or sensitive data. Organizations using vulnerable Firefox versions may face legal penalties, fines, or reputational damage due to data breaches.

Mitigation Strategies

Update Firefox to version 156 or later and Firefox ESR to version 153.3 or later to address the information disclosure vulnerability in the Networking component.

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