IIRC the 2019 report from HCSEC outlined the same bugs had yet to be fixed. I think Huawei doesn't want to fix bugs in products they aren't currently selling (in part based on Nortel code that has been patched over the last decade with new features), thus the lies and lack of investment.
More reading: https://www.fiercewireless.com/wireless/uk-says-huawei-equip... and https://aragonresearch.com/cyber-war-flashback-remembering-t...