CVE-2026-73027 | Microsoft Windows up to Server 2025 Setup Files Cleanup improper authorization

October 14, 2026 Yanac

A vulnerability marked as very critical has been reported in Microsoft Windows. Affected is an unknown function of the component Setup Files Cleanup. The manipulation leads to improper authorization.

This vulnerability is referenced as CVE-2026-73027. The attack can only be performed from a local environment. No exploit is available.

To fix this issue, it is recommended to deploy a patch.VulDB Recent EntriesRead More