SCCP (Signalling Connection Control Part) module in Huawei DP300 V500R002C00, RP200 V500R002C00, V600R006C00, TE30 V100R001C10, V500R002C00, V600R006C00, TE40 V500R002C00, V600R006C00, TE50 V500R002C00, V600R006C00, TE60 V100R001C10, V500R002C00, V600R006C00 has a buffer overflow vulnerability. An attacker has to find a way to send malformed packets to the affected products repeatedly. Due to insufficient input validation, successful exploit may cause some service abnormal.