CVE-2026-74958
Undergoing Analysis Undergoing Analysis - In Progress

Information Disclosure in Firefox WebRTC Component

Vulnerability report for CVE-2026-74958, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: Mozilla Corporation

Description

Information disclosure in the WebRTC component. This vulnerability was fixed in Firefox 154 and Firefox ESR 153.1.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-08-18
Last Modified
2026-08-18
Generated
2026-08-18
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
mozilla firefox 154
mozilla firefox_esr 153.1
mozilla firefox to 154 (inc)
mozilla firefox_esr to 153.1 (inc)

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 the WebRTC component of Firefox. It was addressed in Firefox 154 and Firefox ESR 153.1.

Impact Analysis

An attacker could exploit this to access sensitive information through WebRTC, potentially exposing private data or communications.

Mitigation Strategies

Update Firefox to version 154 or later and Firefox ESR to version 153.1 or later to address the WebRTC information disclosure vulnerability.

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EPSS Chart