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#GS1900

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Deep Dive

Zyxel GS1900 Pre-Auth RCE Exploited in the Wild (CVE-2026-107441)

Zyxel GS1900 switches before 2.90 patch 3 take an unauthenticated HTTP request that runs root commands, and attackers already used the flaw as a zero-day.

Ostorlab Team
Nov 04, 2026