Replacement firmware
Beta build · 10-13-2026-r66345
Browse firmware downloadsdownload1.dd-wrt.comNetwork switch
ZyXEL GS1900-16
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
- Hardware revision not specified
- Open hardware record
Recorded configuration: 16 MB flash; 128 MB RAM
- First installation
- GUI OEM; U-Boot TFTP + serial recovery
Features & details
Check the project and hardware shown for each feature.
Device details
- Hardware revision
- A1
OpenWrt · A1
- Installation routes recorded
- GUI OEM, U-Boot TFTP + serial recovery
- Recovery routes recorded
- U-Boot TFTP + serial recovery
- Availability recorded by source
- Available 2022
Hardware details
Documented hardware
- Flash
- 16 MB
- Processor
- Realtek RTL8382M
- Memory
- 128 MB
- Hardware revision
- A1
Technical references
Security
Saved scan
From our saved security research.
Model advisories
Selected highlightsPrioritized by known exploitation, severity, then date.
GS1900-16 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…
- Affected firmware
- <= 2.90(AAHJ.1)C0
- Fix
- Fix details in the linked record
Details and sources
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.