Huawei DP300 V500R002C00; RP200 V500R002C00; V600R006C00; TE30 V100R001C10; V500R002C00; V600R006C00; TE40 V500R002C00; V600R006C00; TE50 V500R002C00; V600R006C00; TE60 V100R001C10; V500R002C00; V600R006C00 have an out-of-bounds read vulnerability. An unauthenticated, remote attacker has to control the peer device and craft the Signalling Connection Control Part (SCCP) messages to the target devices. Due to insufficient input validation of some values in the messages, successful exploit will cause out-of-bounds read and some services abnormal.