Microsoft's June 2026 Patch Tuesday addresses 200 security vulnerabilities across Windows, Office, Exchange Server, Remote Desktop Client, Hyper-V, and many other products. The update includes fixes for three publicly disclosed zero-day vulnerabilities. Critical-severity patches cover Remote Desktop Client RCE, Windows Hyper-V RCE, Windows Kernel RCE, Active Directory Domain Services RCE, DHCP Client RCE, HTTP.sys RCE, Windows Kerberos KDC RCE, and multiple Microsoft Office RCE flaws. Dozens of elevation of privilege, information disclosure, spoofing, and security feature bypass vulnerabilities are also patched across Windows components including BitLocker, Secure Boot, DWM Core Library, and WinSock drivers.
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Noteworthy vulnerabilitiesRecent updates from other companiesThe June 2026 Patch Tuesday Security UpdatesTest every layer before attackers do87 Impressions