Microsoft released updates to fix at least 89 security vulnerabilities in Windows operating systems and other software.
The patch batch includes fixes for two zero-day vulnerabilities, as well as two other publicly disclosed flaws.
One of the zero-day flaws allows privilege escalation through the Windows Task Scheduler, while the other enables spoofing of Net-NTLMv2 hashes.
Other notable vulnerabilities include an elevation of privilege flaw in Active Directory Certificate Services, a spoofing vulnerability in Microsoft Exchange Server, and remote code execution vulnerabilities in Windows Kerberos, .NET, and Visual Studio.