In many ways this goes against the idea that Huawei is some sort of nefarious organisation in league with the Chinese state. Any backdoor that can be discovered through simple scans, is not a backdoor, its a sign of poor security standards and lackluster programming control.
That is not to say that there could not be true backdoors hidden in the code, however its hard to to balance the idea that somehow Huawei are these super programmers capable of stealing all of the Wests IP traffic with basically pretty awful coding methods.
Also the vulnerabilities (not backdoors) are only potential issues. It does not actually go to the issue of what someone could do with the vulnerability. It could alolow root control, but juts as easily it could just allow access to low level log files