CVE-2019-15913
An issue was discovered on Xiaomi DGNWG03LM, ZNCZ03LM, MCCGQ01LM, WSDCGQ01LM, RTCGQ01LM 5.5.48 devices. Because of insecure key transport in ZigBee communication, attackers can obtain sensitive information, cause a denial of service attack, take over smart home devices, and tamper with messages.
Source: CVE-2019-15913