CVE-2026-83840 | Microsoft Windows up to Server 2025 Error Reporting improper authorization

October 14, 2026 Yanac

A vulnerability described as very critical has been identified in Microsoft Windows. This impacts an unknown function of the component Error Reporting. Executing a manipulation can lead to improper authorization.

This vulnerability is tracked as CVE-2026-83840. The attack is restricted to local execution. No exploit exists.

Applying a patch is advised to resolve this issue.VulDB Recent EntriesRead More