Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.
CVSS Details
CVSS Score
7.7
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Configurations (Affected Products)
No configuration data available.
Microsoft Office (具体受影响版本请参考官方MSRC公告)
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
# Conceptual PoC for CVE-2026-42832
# This script demonstrates the logic flow to exploit the access control issue.
import os
def simulate_exploit():
print("[*] Simulating CVE-2026-42832 exploit...")
# The vulnerability requires local access (AV:L)
target_file = "crafted_spoofing_document.docx"
# Check if we are in a local context
if os.name == 'nt':
print(f"[*] Attempting to bypass access control on {target_file}...")
# In a real exploit, the file structure would trigger the spoofing
# due to lack of proper checks in Microsoft Office.
try:
# os.startfile(target_file) # This would trigger the app
print("[+] Access Control Bypassed!")
print("[+] Spoofing condition achieved.")
except Exception as e:
print(f"[-] Simulation failed: {e}")
else:
print("[-] This vulnerability affects Microsoft Office on Windows.")
if __name__ == "__main__":
simulate_exploit()