CVE-2026-109771
Received Received - Intake

Information Disclosure in Firefox WebRTC Networking

Vulnerability report for CVE-2026-109771, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Mozilla Corporation

Description

Information disclosure in the WebRTC: Networking component. This vulnerability was fixed in Firefox 158.

CVSS Scores

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 158

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This is an information disclosure vulnerability in Firefox's WebRTC Networking component. It was patched in Firefox version 158. The issue allows unauthorized access to sensitive network information that should remain private.

Impact Analysis

An attacker could exploit this to reveal your network details such as IP addresses or local network configurations. This might expose your browsing activity or location data without your consent.

Mitigation Strategies

Update Firefox to version 158 or later to address the information disclosure vulnerability in the WebRTC Networking component.

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