CVE-2026-16350 involves incorrect boundary conditions in the Audio/Video cubeb component of Mozilla Firefox. This vulnerability was addressed and fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. The Mozilla advisories classify the impact as high and include references to the relevant bug report (Bug 2042033). The vulnerability is part of a broader set of memory safety bugs fixed in these releases, some of which showed evidence of memory corruption and potential for arbitrary code execution. There is no CVSS score provided, and no known exploits in the wild have been reported for this specific vulnerability.

The vulnerability can lead to memory safety issues due to incorrect boundary conditions in the Audio/Video cubeb component. This may result in high-impact consequences such as memory corruption. While no active exploitation has been reported, the potential for serious security implications exists if left unpatched.

A fix is available and has been incorporated in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. Users and administrators should update to these versions or later to remediate this vulnerability. There is no indication from the vendor advisory that additional mitigation steps are required beyond applying the official update.