CVE-2026-96869
Received Received - Intake

Information Disclosure in Firefox Networking Component

Publication date: 2026-09-29

Last updated on: 2026-09-29

Assigner: Mozilla Corporation

Description
Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, and Firefox ESR 140.17.

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Meta Information

Published
2026-09-29
Last Modified
2026-09-29
Generated
2026-09-29
AI Q&A
2026-09-29
EPSS Evaluated
N/A
NVD
CVE-2026-96869
EUVD
EUVD-2026-88947

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
mozilla firefox 153.4
mozilla firefox 157
mozilla firefox 140.17

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability involves an information disclosure issue in the Networking component of Firefox browsers. It allows unauthorized access to sensitive data transmitted over the network.

Impact Analysis

An attacker could exploit this to steal sensitive information such as login credentials, personal data, or browsing activity. This may lead to identity theft, financial loss, or privacy breaches.

Compliance Impact

This vulnerability could result in non-compliance with GDPR, HIPAA, or other privacy regulations due to unauthorized data exposure. Organizations may face legal penalties, fines, or reputational damage.

Mitigation Strategies

Update Firefox ESR to version 153.4 or later, Firefox to version 157 or later, or Firefox ESR to version 140.17 or later to address the information disclosure vulnerability in the Networking component.

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