CVE-2026-8863 | Microsoft Windows up to Server 2025 UEFI Secure Boot reliance on component that is not updateable

A vulnerability classified as critical was found in Microsoft Windows. The affected element is an unknown function of the component UEFI Secure Boot. Such manipulation leads to reliance on component that is not updateable.

This vulnerability is uniquely identified as CVE-2026-8863. Local access is required to approach this attack. No exploit exists.

Upgrading the affected component is advised.