Cybersecurity researchers say Huawei kit much more vulnerable to hacking than rivals' kit.
Researchers from IoT security firm Finite State say in a new report that "there is substantial evidence that zero-day vulnerabilities based on memory corruptions are abundant in Huawei firmware."
The report adds: "In summary, if you include known, remote-access vulnerabilities along with possible backdoors, Huawei devices appear to be at high risk of potential compromise."
The report also says: "From a technical supply-chain security standpoint, Huawei devices are some of the worst we've ever analysed."
For the report, Finite State analysed 1.5 million files within about 10,000 firmware images that are used across 558 Huawei enterprise networking products.