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Zyxel GS1900 Zero-Day Patch 3 Fixes Bypassed Bug

Original title: Zyxel GS1900 Zero-Day: Patch 3 Fixes Bypassed Bug

SOCRadarby Yağmur Ernalbant ()11 min read1
Read at socradar.io
Part of a story covered by 10 sourcesZyxel patches GS1900 zero-day used on 996 switchesMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

Zyxel GS1900 zero-day has been addressed in Patch 3.

Zyxel GS1900 has a zero-day bug that Patch 3 addresses. The article discusses SOCRadar's vulnerability intelligence and patching tools.

Security assessment · AI, from the articleNo known exploitation
ProductAffectedFixed in
Zyxel GS1900—Patch 3
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Tags
zyxelgs1900zero-day
Vendors
Zyxel
Products
GS1900

From the original article

11 min read at socradar.io

Zyxel has released new firmware for 10 GS1900 switch models to fix CVE-2026-107441, an out-of-bounds write that lets an unauthenticated attacker run OS commands on the switch. The flaw sits underneath an exploit that attackers had already used against nearly 1,000 GS1900 switches, and that exploit still works on the firmware Zyxel shipped in June […]

SOCRadar

By Yağmur Ernalbant · socradar.io

Read the full article at SOCRadar

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.