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Security Notice – Statement About the "Roaming Threat to Telecommunications Companies" Report

  • Initial Release Date: Oct 23, 2021
  • Last Release Date: Oct 23, 2021

Huawei has become aware of a roaming threat to telecommunications companies through a report from a security research team. We have started to closely follow the situation to check whether our customers have been affected. We are also closely observing the attack information and will provide the necessary technical support to protect our customers. Based on currently obtained information, there is no clear evidence that Huawei products are the target of the threat.
Contact Huawei PSIRT immediately if there is any sign of vulnerability exploitation in Huawei products. Huawei PSIRT will update this SN as new information emerges.

2021-10-23 V1.0 Initial Draft

Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.

To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit
To report a security vulnerability in Huawei products and solutions, please send it to For details, please visit

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to get necessary support for product security vulnerabilities. For TAC contact information, please refer to Huawei worldwide website at: