CERT24Luxembourg nationwide telecom outage may have been caused by a Huawei zero-day vulnerability
On 23 July 2025, Luxembourg reportedly experienced a nationwide telecommunications outage that disrupted landline, 4G, 5G and emergency services for more than three hours. The outage may have been caused by a previously undisclosed flaw in Huawei enterprise routers, where specially crafted traffic forced the devices into continuous reboot loops.