Essential maintenance - patching multiple systems

Incident Report for Cardiff University

Investigating

University IT have been made aware of a significant vulnerability requiring urgent patching maintenance. As this vulnerability is critical, we have taken the decision to block internet access to the affected systems (note that access is still available if on-campus or via the VPN). The vast majority of our services are unaffected, but it is difficult to list all affected systems. If you cannot access a service and/or website that you would usually be able to, please contact IT Support.

We apologise for the disruption this may cause.

Posted Oct 21, 2026 - 15:13 BST