Cisco UCS Invicta 4.3, 4.5, and 5.0.1 on Invicta appliances and Invicta Scaling System uses the same hardcoded GnuPG encryption key across different customers' installations, which allows remote attackers to defeat cryptographic protection mechanisms by sniffing network traffic to an Autosupport server and leveraging knowledge of this key from another installation, aka Bug ID CSCur85504.