<PackageReference Include="System.Threading.AccessControl" Version="10.0.7" />

System.Security.AccessControl.SemaphoreRights

public enum SemaphoreRights
Specifies the access control rights that can be applied to named system semaphore objects.
namespace System.Security.AccessControl { public enum SemaphoreRights { Modify = 2, Delete = 65536, ReadPermissions = 131072, ChangePermissions = 262144, TakeOwnership = 524288, Synchronize = 1048576, FullControl = 2031619 } }