The vulnerabilities have already been addressed but many systems remain unpatched
The flaw could allow an attacker with a foothold on the local network to instantly become a Domain Admin
The Zerologon micropatch is 'primarily targeted at Windows Server 2008 R2 users without Extended Security Updates'
The vulnerability could allow an attacker to have access to an organisation's Active Directory domain controllers
Seventeen bugs are rated as "critical" meaning they can be easily exploited by hackers to gain full control of a vulnerable machine