ThreatsCloud & SaaSBreakingZyxel GS1900 Smart Managed Switches Exploited in the Wild via CGI Stack Buffer Overflow Flaw CVE-2026-7273Zyxel patches actively exploited stack buffer overflow flaw CVE-2026-7273 in GS1900 smart switches, enabling unauthenticated LAN attackers to execute arbitrary code.Daniel Okafor·22 Sep 2026, 04:00 IST·15 min read