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CVE-2026-21509 PoC — Microsoft Office Security Feature Bypass Vulnerability

Source
https://github.com/SimoesCTT/CTT-NFS-Vortex-RCE
Associated Vulnerability
Title:Microsoft Office Security Feature Bypass Vulnerability (CVE-2026-21509)
Description:Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locally.
Description
New Physics Disclosure This repository contains a full weaponized exploit for **CVE-2026-21509**, targeting the Windows Network File System (NFSv4.1) kernel-mode driver (`nfssvr.sys`).
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