Zyxel GS1900 Zero-Day: Why June's Patch Failed and Which Firmware Fixes It

Zyxel's June patch failed to stop an exploited GS1900 zero-day affecting 10 switch models. Here's which firmware versions fix the flaw and what administrators should check.

Vulnerabilities & Zero-Day IoT & OT Security
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AWS Security Bulletins

CVE-2026-122193 - Issue with Trusted Remote Execution Setup Guide - OS command injection in the example SSM documents in Trusted Remote Execution (REX)

Bulletin ID: 2026-173-AWS Publication Date: 11/06/2026 09:00 AM PST Description: We identified CVE-2026-122193, an OS command injection issue in an example provided in the set-up documentation. The example included a script that creates AWS Systems Manager (SSM) documents (Rex-RO and Rex-RW) for running scripts on managed instances. Due to how the example script handled input parameters, a user with permissions to in…