CVE-2026-70580 | Microsoft Windows up to Server 2025 Credential Guard missing authentication

October 14, 2026 Yanac

A vulnerability was found in Microsoft Windows up to Server 2025. It has been classified as very critical. This issue affects some unknown processing of the component Credential Guard. The manipulation leads to missing authentication.

This vulnerability is traded as CVE-2026-70580. An attack has to be approached locally. There is no exploit available.

Applying a patch is the recommended action to fix this issue.VulDB Recent EntriesRead More