Huawei DP300 V500R002C00, RP200 V600R006C00, TE30 V100R001C10, V500R002C00, V600R006C00, TE40 V500R002C00, V600R006C00, TE50 V500R002C00, V600R006C00, TE60 V100R001C10, V500R002C00, V600R006C00 have an invalid memory access vulnerability. An unauthenticated attacker has to find a way to send malformed SCCP messages to the affected products. Due to insufficient input validation of some values in the messages, successful exploit may cause buffer error and some service abnormal.