CVE-2026-118006
Received Received - Intake

Privilege Escalation in Firefox WebRTC Signaling

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Privilege escalation due to use-after-free in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 159.

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Meta Information

Published
2026-10-27
Last Modified
2026-10-27
Generated
2026-10-27
AI Q&A
2026-10-27
EPSS Evaluated
N/A
NVD
CVE-2026-118006
EUVD
EUVD-2026-110904

Affected Vendors & Products

Currently, no data is known.

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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 a privilege escalation vulnerability caused by a use-after-free error in the WebRTC signaling component of Firefox. A use-after-free occurs when a program continues to use memory after it has been freed, potentially allowing attackers to execute arbitrary code or escalate privileges.

Impact Analysis

An attacker could exploit this flaw to gain elevated access to your system, potentially allowing them to install malware, steal data, or take control of your device. Users of affected Firefox versions should update immediately to mitigate risk.

Mitigation Strategies

Update Firefox to version 159 or later to address the privilege escalation vulnerability in the WebRTC Signaling component.

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