Deviceways

Network switch

ZyXEL GS1900-10HP

Contribute

Projects for this device

Replacement firmware

Replace router software with a customizable system for network controls and community packages.

How to get started

Follow the guide for your exact router version. The first installation may use its web interface, recovery mode or a serial connection.

Setup
Firmware replacement; route varies by router
You’ll need
Exact hardware revision, an appropriate OpenWrt release and its model-specific installation guide.
A1
Get OpenWrt firmware Release listed · 25.12.6
v1
Open hardware record
Original project github.com

A1

First installation
U-Boot TFTP + serial recovery
Sources

Features & details

Check the project and hardware shown for each feature.

Device details

zyxel gs1900-10hp — device documentation (github.com)

Hardware revision
v1

Device details

Device details — Source documentation (openwrt.org)

Hardware revision
A1

OpenWrt · A1

OpenWrt · A1 — Source documentation (openwrt.org)

Installation routes recorded
U-Boot TFTP + serial recovery
Recovery routes recorded
U-Boot TFTP + serial recovery
Availability recorded by source
Available 2024

Hardware differences

Security

Saved scan

From our saved security research.

Model advisories

Selected highlights

Prioritized by known exploitation, severity, then date.

CVE published

Listed in CISA KEV ↗CVSS 8.8 (v3.1)

GS1900-10HP firmware

A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-based, unauthenticated attacker to…

CVE-2026-7273

Affected firmware
<= 2.90(AAZI.1)C0
Fix
Fix details in the linked record
Read Zyxel CVE record
Details and sources
CVE updated

A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.

Security advisory zyxel security advisory for stack based buffer overflow vulnerability in gs1900 series switches 06 16 2026 — GS1900-10HP firmware (zyxel.com) ↗
CVE published

CVSS 5.3 (v3.1)

GS1900-10HP firmware

An insufficient entropy vulnerability caused by the improper use of a randomness function with low entropy for web authentication tokens generation exists in the Zyxel GS1900-10HP…

CVE-2024-38270

Affected firmware
V2.80(AAZI.0)C0
Fix
Fix details in the linked record
Read Zyxel CVE record
Details and sources
CVE updated

An insufficient entropy vulnerability caused by the improper use of a randomness function with low entropy for web authentication tokens generation exists in the Zyxel GS1900-10HP firmware version V2.80(AAZI.0)C0. This vulnerability could allow a LAN-based attacker a slight chance to gain a valid session token if multiple authenticated sessions are alive.

Security advisory zyxel security advisory for insufficient entropy vulnerability for web authentication tokens generation in gs1900 series switches 09 10 2024 — GS1900-10HP firmware (zyxel.com) ↗
Check more security advisories for this device · CVE.org