The September 2025 Security Update Review

This Patch Tuesday analysis reviews September Microsoft updates and highlights multiple vulnerabilities—several Critical-rated code execution bugs and a large number of elevation-of-privilege issues—affecting Graphics, Office (notably Excel), SMB/NTFS, Azure components, SQL Server, Defender Firewall, and others; many require authentication or user interaction, some can lead to SYSTEM or root compromise, and the report notes info leaks, security feature bypasses, and DoS fixes while stating no active exploitation is reported and recommending patching and hardening.