CVE-2026-21535 | Microsoft Teams access control

February 20, 2026 Yanac

A vulnerability was found in Microsoft Teams. It has been declared as critical. Affected is an unknown function. Executing a manipulation can lead to improper access controls.

This vulnerability appears as CVE-2026-21535. The attack may be performed from remote. There is no available exploit.

This product is a managed service. This means that users cannot maintain vulnerability countermeasures themselves.VulDB Recent EntriesRead More