CVE-2026-92045
Received Received - Intake

Firefox WebRTC Sandbox Escape Vulnerability

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Sandbox escape due to incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-92045
EUVD
EUVD-2026-78508

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 156
mozilla firefox_esr 153.3

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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 vulnerability allows an attacker to escape the sandbox environment due to incorrect boundary conditions in the WebRTC component of Firefox. This means malicious code could run outside the intended restricted environment, potentially gaining higher system access.

Impact Analysis

If exploited, this vulnerability could allow an attacker to execute arbitrary code on your system with the same privileges as the Firefox process. This could lead to data theft, installation of malware, or further compromise of your device.

Mitigation Strategies

Update Firefox to version 156 or later and Firefox ESR to version 153.3 or later to patch the WebRTC boundary condition issue.

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