A Chinese-speaking threat actor has exploited a vulnerability (CVE-2026-7273) in unpatched ZyXEL GS1900 Smart Managed Switches and has exfiltrated sensitive data from 996 devices across 48 countries, GreyNoise reported on Monday. The affected switches are predominantly located in Italy, the US, Taiwan, South Korea, and a number of EU countries. CVE-2026-7273 exploitation is part of an unfolding operation The Zyxel GS1900 Series is a line of Gigabit Ethernet switches aimed at small and mid-sized business … More →
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