Firefox 156 Sandbox Escape in WebRTC Component
CVE-2026-92045 Published on September 15, 2026
Sandbox escape due to incorrect boundary conditions in the WebRTC component
Sandbox escape due to incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
Vulnerability Analysis
CVE-2026-92045 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2026-92045 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2026-92045
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Affected Versions
Mozilla Firefox:- Version 153.3, <= 153.* is unaffected.
- Version 156, <= * is unaffected.
- Version 153.3, <= 153.* is unaffected.
- Version 156, <= * is unaffected.