The May 2026 Patch Tuesday cycle reveals how Anthropic's Project Glasswing is reshaping threat discovery, with Microsoft addressing 118 flaws including a critical Netlogon stack overflow granting SYSTEM access on domain controllers and a DNS client RCE. This marks the first month in two years without zero-days under active exploitation, yet the volume signals accelerating attacker-defender asymmetry. Apple backported 52 fixes to legacy iOS 15 devices while Mozilla's Glasswing-driven Firefox releases hit 271 bugs, and Oracle shifted to monthly cycles after 450 quarterly patches. Beyond vendor announcements, these updates protect energy grids, financial networks and government systems reliant on Windows Server and Entra ID, where forged credential bypasses could enable persistent access. Historical patterns from 2024-2025 show nation-state groups weaponizing similar privilege escalations within weeks of disclosure; Glasswing's edge may compress that timeline further if adversaries replicate the AI approach. The coverage underplays how unauthenticated remote flaws in widely deployed DNS and Netlogon components create cascading infrastructure threats far beyond endpoint users.