An Improper Privilege Management vulnerability exists in HyperCloud that will impact the ability for a user to authenticate against the management plane. An authenticated admin-level user may be able to delete the "admin" or "serveradmin" users, which prevents authentication from subsequently succeeding. This issue affects HyperCloud versions 1.0 to any release before 2.1.

SoftIron HyperCloud 2.5.0 through 2.6.3 may incorrectly add user SSH keys to the administrator-level authorized keys under certain conditions, allowing unauthorized privilege escalation to admin via SSH. Affects non-production debug and internal development builds created between versions 2.5.0 and 2.6.3.  No generally available (GA) or customer-released production builds were affected.  There is no evidence that this issue was exposed in customer environments or production deployments.