Patch module of Huawei NIP6300 V500R001C20SPC100, V500R001C20SPC200, NIP6600 V500R001C20SPC100, V500R001C20SPC200, Secospace USG6300 V500R001C20SPC100, V500R001C20SPC200, Secospace USG6500 V500R001C20SPC100, V500R001C20SPC200 has a memory leak vulnerability. An authenticated attacker could execute special commands many times, the memory leaking happened, which would cause the device to reset finally.