CVE-2026-21509 | Microsoft Office Security Feature Bypass Vulnerability

#cve202621509 #ai #cve #workplace

Most treat Microsoft Office as harmless UI.

But CVE-2026-21509 just punched a hole through Protected View, macro enforcement, and document trust — collapsing the illusion of local document safety.

This isn’t about “just patching.”

This is about your entire productivity stack getting socially engineered through a Word file that looks clean — but pierces silently.

I break it down in one line of truth:

Signature-based defense
User training
Click fatigue

What you need is an audit-proof, exploit-aware, CVE-tracked governance mesh

And I show exactly how to model it, visualize it, and prove you were ready.