Cyber actors are attempting to exploit Windows Zerologon and Oracle security flaws, researchers warn
The vulnerabilities have already been addressed but many systems remain unpatched
Microsoft is again urging IT admins to patch their systems to protect data from hackers
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