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

Source
https://github.com/decalage2/detect_CVE-2026-21509
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
YARA rule and python script to detect potential exploits for the CVE-2026-21509 vulnerability in MS Office
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