Alleged Huawei zero-day blamed for the 2025 Luxembourg telecom crash
A Huawei zero-day flaw reportedly caused Luxembourg’s 2025 nationwide outage, disrupting landline, 4G/5G, and emergency services On July 23, 2025, a nationwide telecom outage in Luxembourg was reportedly triggered by a previously undisclosed flaw in Huawei enterprise routers. The attack disrupted landline, 4G, 5G, and emergency communications for more than three hours after specially crafted […]

On July 23, 2025, a nationwide telecom outage in Luxembourg was reportedly triggered by a previously undisclosed flaw in Huawei enterprise routers. The attack disrupted landline, 4G, 5G, and emergency communications for more than three hours after specially crafted traffic forced network devices into continuous reboot loops.
Attackers used specially crafted network traffic to force Huawei enterprise routers into endless reboot loops, crashing key parts of POST Luxembourg’s telecom infrastructure.
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