There is a Factory Reset Protection (FRP) bypass vulnerability on several smartphones. The system does not sufficiently verify the permission, an attacker uses a data cable to connect the smartphone to another smartphone and then perform a series of specific operations. Successful exploit could allow the attacker bypass the FRP protection.

Honor 8,Honor V8,Honor 9,Honor V9,Nova 2,Nova 2 Plus,P9,P10 Plus,Toronto Huawei smart phones with software of versions earlier than FRD-AL00C00B391, versions earlier than FRD-DL00C00B391, versions earlier than KNT-AL10C00B391, versions earlier than KNT-AL20C00B391, versions earlier than KNT-UL10C00B391, versions earlier than KNT-TL10C00B391, versions earlier than Stanford-AL00C00B175, versions earlier than Stanford-AL10C00B175, versions earlier than Stanford-TL00C01B175, versions earlier than Duke-AL20C00B191, versions earlier than Duke-TL30C01B191, versions earlier than Picasso-AL00C00B162, versions earlier than Picasso-TL00C01B162 , versions earlier than Barca-AL00C00B162, versions earlier than Barca-TL00C00B162, versions earlier than EVA-AL10C00B396SP03, versions earlier than EVA-CL00C92B396, versions earlier than EVA-DL00C17B396, versions earlier than EVA-TL00C01B396 , versions earlier than Vicky-AL00AC00B172, versions earlier than Toronto-AL00AC00B191, versions earlier than Toronto-TL10C01B191 have a permission control vulnerability. An attacker with the system privilege of a mobile can exploit this vulnerability to bypass the unlock code verification and unlock the mobile phone bootloader.

The Bastet Driver of Nova 2 Plus,Nova 2 Huawei smart phones with software of Versions earlier than BAC-AL00C00B173,Versions earlier than PIC-AL00C00B173 has a use after free (UAF) vulnerability. An attacker can convince a user to install a malicious application which has a high privilege to exploit this vulnerability, Successful exploitation may cause arbitrary code execution.

Honor 8,Honor V8,Honor 9,Honor V9,Nova 2,Nova 2 Plus,P9,P10 Plus,Toronto Huawei smart phones with software of versions earlier than FRD-AL00C00B391, versions earlier than FRD-DL00C00B391, versions earlier than KNT-AL10C00B391, versions earlier than KNT-AL20C00B391, versions earlier than KNT-UL10C00B391, versions earlier than KNT-TL10C00B391, versions earlier than Stanford-AL00C00B175, versions earlier than Stanford-AL10C00B175, versions earlier than Stanford-TL00C01B175, versions earlier than Duke-AL20C00B191, versions earlier than Duke-TL30C01B191, versions earlier than Picasso-AL00C00B162, versions earlier than Picasso-TL00C01B162 , versions earlier than Barca-AL00C00B162, versions earlier than Barca-TL00C00B162, versions earlier than EVA-AL10C00B396SP03, versions earlier than EVA-CL00C92B396, versions earlier than EVA-DL00C17B396, versions earlier than EVA-TL00C01B396 , versions earlier than Vicky-AL00AC00B172, versions earlier than Toronto-AL00AC00B191, versions earlier than Toronto-TL10C01B191 have an unlock code verification bypassing vulnerability. An attacker with the root privilege of a mobile can exploit this vulnerability to bypass the unlock code verification and unlock the mobile phone bootloader.