In a recent article from August 2018, it was discussed that the government had banning ZTE and Huawei device in the US for government use. I for one agree, and it should be across the board, no consumer ownership based on the Chinese actively shipping their state owned products with known vulnerabilities/backdoors. China has to clean up its espionage act or hit the road. Here are 4 fairly serious CVE's on the matter posted on CERT regarding ZTE alone.
https://nvd.nist.gov/vuln/detail/CVE-2018-14995
https://nvd.nist.gov/vuln/detail/CVE-2018-15006
https://nvd.nist.gov/vuln/detail/CVE-2018-15005
https://nvd.nist.gov/vuln/detail/CVE-2018-7366
Cheers