https://www.bleepingcomputer.com/news/security/critical-citrix-flaw-may-expose-thousands-of-firms-to-attacks/

A newly discovered vulnerability impacting the Citrix Application Delivery Controller (NetScaler ADC) and the Citrix Gateway (NetScaler Gateway) could potentially expose the networks of over 80,000 firms to hacking attacks.

The vulnerability, currently tracked as CVE-2019-19781, could allow remote attackers with access to a company's internal network without requiring authentication.