The National Cyber Security Centre is usually not the initial source of information regarding a security vulnerability. These sources are primarily software vendors, security vendors and various researchers. To provide accurate information about what is going on, the National Cyber Security Centre aggregates information from various source.
CVN-2020-0046
Adobe Reader Mobile (Android version) Information Disclosure Vulnerability
CVN-2020-0044
Microsoft Windows Zero-day Information Disclosure Vulnerability
CVN-2020-0041
IBM WebSphere Application Server Remote Code Execution Vulnerability
CVN-2020-0019
VMWare vCenter Server Sensitive Information Disclosure Vulnerability
CVN-2019-0155
Azure Active Directory Authentication Library Elevation of Privilege Vulnerability