CVE-2026-8972

Modified Modified - Updated After Analysis

Privilege Escalation in Firefox WebRTC Audio/Video

Publication date: 2026-05-19

Last updated on: 2026-05-20

Assigner: Mozilla Corporation

Description

Privilege escalation in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-05-19

Last Modified

2026-05-20

Generated

2026-06-30

AI Q&A

2026-05-19

EPSS Evaluated

2026-06-28

NVD

CVE-2026-8972

EUVD

EUVD-2026-30924

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 151.0.0 (exc)
mozilla	thunderbird	to 151.0.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This vulnerability is a privilege escalation issue found in the WebRTC Audio/Video component of Firefox. It allows an attacker to gain higher privileges than intended within the affected component. The issue was addressed and fixed in Firefox version 151.

Impact Analysis

The vulnerability could allow an attacker to escalate their privileges within the WebRTC Audio/Video component, potentially leading to unauthorized access or control over audio and video functionalities. This could compromise user privacy or system security if exploited.

Mitigation Strategies

To mitigate this privilege escalation vulnerability in the WebRTC Audio/Video component, you should update Firefox to version 151 or later where the issue is fixed.

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