🛡️Security & Patch Tuesday
October 2025 Patch Tuesday: 89 vulnerabilities fixed, 4 zero-days patched
Security
Patch Tuesday
CVE
Microsoft released fixes for 89 vulnerabilities including 4 actively exploited zero-days. Critical RCE in Windows LDAP and privilege escalation in Kernel components require immediate attention.
Source: MSRC • Oct 8
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Critical Windows Kerberos vulnerability under active attack (CVE-2025-43572)
CVE
Zero-Day
Security researchers detected active exploitation of CVE-2025-43572 allowing attackers to bypass Kerberos authentication. Microsoft recommends immediate patching for all domain controllers.
Source: BleepingComputer • Oct 9
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☁️Azure Updates
Azure OpenAI Service: GPT-4.5 Turbo now generally available
Azure
AI
Microsoft announced GA of GPT-4.5 Turbo across 8 Azure regions with improved performance and lower pricing. New 128K context window and enhanced function calling capabilities included.
Source: Azure Blog • Oct 15
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IMPORTANT: Azure AD Graph API retirement in 6 months (March 2026)
Retirement
Action Required
Legacy Azure AD Graph API will be retired on March 31, 2026. Teams must migrate to Microsoft Graph API. Microsoft provides automated migration tools and guidance.
Source: Azure Updates • Oct 14
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📊Microsoft 365 Admin
New admin controls for Microsoft Copilot data governance
M365
Copilot
Microsoft Teams admins can now configure granular data sharing policies for Copilot. New controls include per-user permissions, content filtering, and compliance logging.
Source: Microsoft 365 Blog • Oct 16
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