Citrix ADC VPN Plugin upgrade issue with Firmware 12.1 Build 55.18
If you are using your ADC to provide VPN to users and you have client upgrade configured you should have some issue.
Citrix CVE-2019-19781. What to do?
On December 17 2019 Citrix released security bulletin CTX267027: A vulnerability in Citrix Application Delivery Controller (ADC), formerly known as NetScaler ADC, and Citrix Gateway, formerly known as NetScaler Gateway, that could lead to arbitrary code execution.