A zero-day flaw in Huawei enterprise router software was blamed for a July 2025 outage that knocked out landline, 4G, and 5G service across Luxembourg for more than three hours. POST Luxembourg said specially crafted network traffic forced the routers into a reboot loop, causing a denial-of-service condition and disrupting emergency communications for hundreds of thousands of residents. No CVE is provided, and it remains unclear whether Huawei has issued a patch.
Why it matters: This shows how a single unpatched network-device flaw can interrupt phone and mobile service for an entire country, including emergency calls. Organizations using Huawei enterprise routers should urgently seek vendor guidance, limit exposure, and prepare mitigations because patch status is still unclear.
SecurityWeek News
2026.05.22
100% relevant
The article provides a concrete new event: a previously undisclosed Huawei router vulnerability linked to a real-world national telecom outage.
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