The OSIsoft PI Interface for IEEE C37.118 before 1.0.6.158 allows remote attackers to cause a denial of service (instance shutdown and data-collection outage) via crafted C37.118 configuration packets that trigger an invalid read operation.
In OSIsoft PI System multiple products and versions, a remote, unauthenticated attacker could crash PI Network Manager service through specially crafted requests. This can result in blocking connections and queries to PI Data Archive.