ASUS ZenWiFi Pro XT12 – Official Thread ASUS ZenWiFi Pro XT12 Hardware Specs: CPU1: Broadcom BCM4912 (2.0 GHz, 4 cores) FLA: 256 MiB RAM: 1 GiB WI1 chip1: Broadcom BCM6715 WI2 chip1: Broadcom BCM6715 ETH chip1: Broadcom BCM4912 Switch: Broadcom BCM4912 In a completely sane world, madness is...

[UK Sentinel]

ASUS ZenWiFi Pro XT12 Hardware Specs:

• CPU1: Broadcom BCM4912 (2.0 GHz, 4 cores)
• FLA: 256 MiB
• RAM: 1 GiB
• WI1 chip1: Broadcom BCM6715
• WI2 chip1: Broadcom BCM6715
• ETH chip1: Broadcom BCM4912
• Switch: Broadcom BCM4912

 

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[UK Sentinel]

ASUS ZenWiFi Pro XT12 latest firmware

Version 3.0.0.4.386.49723 (UKTH)

2022/08/04

ASUS ZenWIFI Pro XT12 Firmware version 3.0.0.4.386.49723
1. Supported U-NII-4 5.9GHz channels(US only) for reducing interference and improving connection speed.
2. Fixed AiMesh backhaul issue.
3. Fixed Wake-on-LAN issue.
4. Improved system stability.

https://dlcdnets.asus.com/pub/ASUS/wireless/ZenWIFI_XT12/FW_ZENWIFI_XT12_300438649723.zip

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[UK Sentinel]

New ASUS ZenWIFI Pro XT12 Firmware version 3.0.0.4.388.21293

Release Date: 2022/10/24

1. Supported WireGuard VPN server and client.
2. Supported VPN fusion. It can easily achieve VPN connection to network devices like Smart TV, Game consoles and without installing the VPN client software.
3. Supported new devices connection notification.
4. Supported connection diagnostic on the ASUS router app.
5. Supported Instant Guard 2.0 which helps easily invite family or friends to join the VPN connection.
6. Upgraded parental control and added reward, new scheduler for flexible setting
7. Fixed HTTP response splitting vulnerability. Thanks to Efstratios Chatzoglou, University of the Aegean.
8. Fixed status page HTML vulnerability. Thanks to David Ward.
9. Fixed CVE-2018-1160. Thanks to Steven Sroba.
10. Fixed cfg_server security issue

https://dlcdnets.asus.com/pub/ASUS/wireless/ZenWIFI_XT12/FW_ZENWIFI_XT12_300438821293.zip

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[UK Sentinel]

So I have been made aware that for the ZenWIFI Pro XT12 Firmware version 3.0.0.4.388.21293, a couple of features are not working/missing.

• No Wireguard client, only server.
•  VPN Fusion issues
• UI related issues

I have spoken with ASUS and they plan to release another firmware shortly, but I am unsure yet as to whether this will be a beta firmware release or more formal via ASUS download servers

Either way, hopefully this will help those that have contacted myself

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[UK Sentinel]

New Firmware Version 3.0.0.4.388.21678
2022/11/21

ASUS ZenWIFI Pro XT12 Firmware version 3.0.0.4.388.21678

1. Optimized memory usage and improved system stability.
2. Fixed 2.5G port compatibility issues.
3. Added a new web GUI login URL http://www.asusrouter.com
4. Fixed IPTV compatibility issue with Movistar.
5. Fixed VPN fusion, AiMesh, and Network map GUI bugs.
6. Fixed WAN compatibility issue with Starlink router.
7. Fixed miniupnpc vulnerabilities, CVE-2015-603, CVE-2017-1000494
8. Fixed IPSec server vulnerability, CVE-2022-40617

https://www.asus.com/networking-iot-servers/whole-home-mesh-wifi-system/zenwifi-wifi-systems/asus-zenwifi-pro-xt12/helpdesk_download/

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[UK Sentinel]

New Firmware version 3.0.0.4.388_22127
– Release Note –

Bug Fixes and Enhancements:
1. Improved system stability.
2. Fixed the IPsec VPN compatibility issue with Win10.
3. Fixed the VPN fusion user interface issues under the HTTPS connection.
4. Fixed Client DOM Stored XSS vulnerability.
5. Improved Wireguard performance.

https://dlcdnets.asus.com/pub/ASUS/wireless/ZenWIFI_XT12/FW_ZENWIFI_XT12_300438822127.zip

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[dodgydrains]

ASUS ZenWiFi Pro XT12 Firmware version 9.0.0.6.102.4856
Version 9.0.0.6.102.4856
Beta Version
49.55 MB
2023/03/21
Be noted: This is an early stage beta, there might be bugs. This version can be downgraded via web GUI only.

1. Recap new features of 3.0.0.6.102: Guest network Pro(SDN), VLAN, Auto USB WAN backup, iPhone tethering, Multi-services WAN.
2. Re-defined VLAN, supports Trunk, Access mode with VLAN-only-network.
3. Synchronize Guest network pro (SDN) with VLAN, create/delete new VLAN-only-network will create/delete a new profile in Guest network as well.
4. Port isolation and AP isolation to restrict device access to each other.
5. Re-defined multi-service WAN, disable it by default.
6. Add surfshark VPN in VPN fusion.

Please unzip the firmware file first then check the MD5 code.
MD5: 67edce1962927cbbc18deee86477b725

https://dlcdnets.asus.com/pub/ASUS/wireless/ZenWIFI_XT12/FW_ZenWiFi_XT12_90061024856.zip?model=zenwifi%20pro%20xt12

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[UK Sentinel]

According to a SNB forums post, ‘Traffic analyzer is working again with this beta firmware release’

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[UK Sentinel]

Latest ASUS ZenWIFI Pro XT12 Firmware version 3.0.0.4.388_24177

Version 3.0.0.4.388_24177

2023/11/01

New features:
-Built-in Surfshark in VPN Fusion allows you to surf the internet anonymously and securely from anywhere by encrypting connections. Please refer to https://asus.click/SurfsharkVPN
-DDNS transfer allows you to transfer your ASUS DDNS hostname from your original router to the new one. Please refer to https://asus.click/ASUSDDNS

Bug fixes and functionality modifications:
-Resolved the issue with login and password changes.
-Resolved the IPSec VPN connection issues.
-Resolved the Instant Guard connection issues.
-Fixed the issue where Traffic Analyzer sometimes couldn’t record data.
-Fixed the time display issue for the preferred upgrade time in the Auto Firmware Upgrade function.
-Fine-tuned the description for port status.
-Enabled DynDNS and No-IP DDNS to use IPv6.
-Fixed AiMesh preferred AP identification in site survey results.
-Updated timezone list for Greenland, Mexico, and Iran.
-Allowed WireGuard Server clients to access the Samba server.
-Fixed memory leak issue.
-The ARP response issue has been resolved, along with the connection issue between the router and the ROG Phone 6 and 7.
-Resolved the issue where the USB path is not displayed on the Media Server page in the AiMesh node
-Ensured consistent display of client status on the WireGuard server.
-Enhanced system stability when accessing the WireGuard Server with DMZ enabled.
-Improved stability when enabling or disabling the WireGuard server.
-Addressed an issue that prevented clients from accessing the network when setting up the OpenVPN server in TAP mode.
-Optimized memory utilization and fixed an occasional server error when registering DDNS with an app.
-Corrected a bug encountered when adding a rule to the Network Services Filter.

Security updates:
-Enabled and supported ECDSA certificates for Let’s Encrypt.
-Fixed DoS vulnerabilities in firewall configuration pages.
-Fixed DoS vulerabilities in httpd.
-Fixed information disclosure vulnerability.
-Fixed null pointer dereference vulnerabilities.
-Fixed token authentication security issues.
-Fixed security issues on the status page.
-Fixed Client DOM Stored XSS.
-Upgraded to the latest dropbear version.
-Fixed a stack overflow vulnerability.

https://www.asus.com/uk/networking-iot-servers/whole-home-mesh-wifi-system/zenwifi-wifi-systems/asus-zenwifi-pro-xt12/helpdesk_bios?model2Name=ASUS-ZenWiFi-Pro-XT12

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[UK Sentinel]

New ASUS ZenWIFI XT12 Firmware version 3.0.0.6.102_35186

Version 3.0.0.6.102_35186

2024/07/12

 

[ New features ]
-Kid’s Network: Easily create a separate SSID for children’s devices. Integrated AdGuard DNS offers advanced protection options, including service and website blocking, query logs, tracker blocking, and ad pop-up Ad blocking. (More details: https://www.asus.com/support/faq/1053541)

-VPN Network: Establish a VPN-specific SSID to centralize VPN settings for all connected devices. This feature allows for the importation of profiles from popular VPN services such as Surfshark, NordVPN, and CyberGhost from VPN Fusion.(More details:https://www.asus.com/support/faq/1053542)

-AdGuard: AdGuard offers ad-blocking and privacy protection features. Simply apply it in the router or Smart Home Master profile to filtering out advertising, tracking, and malware domains at the DNS level, preventing your device from loading potentially harmful content. In network level. (More details:https://www.asus.com/ca-en/support/faq/1051213)

[ New VPN services in VPN Fusion ]
NordVPN:https://www.asus.com/support/FAQ/1051215
CyberShost: https://www.asus.com/support/FAQ/1051645

[ Bug Fixes and Enhancements ]
-Stability enhancements.

[ Security update ]
-OpenVPN config security enhancement in cusomization option.
-USN applicationn security improvement for XSS attacks.

https://www.asus.com/uk/supportonly/zenwifi%20pro%20xt12/helpdesk_bios/

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[UK Sentinel]

New ASUS ZenWIFI XT12 Pro Firmware version 3.0.0.6.102_35188

Version 3.0.0.6.102_35188

2024/08/29

Fixed injection vulnerability.

https://www.asus.com/uk/supportonly/zenwifi%20pro%20xt12/helpdesk_bios/

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[citylightwalrus]

ASUS ZenWIFI Pro XT12 Firmware version 3.0.0.6.102_35199
Version 3.0.0.6.102_35199
50.08 MB
2024/11/13

1. Strengthened input validation and data processing workflows to further protect information security.
2. Enhanced AiCloud password protection mechanisms, safeguarding against unauthorized access attempts.
3. Enhanced device security through improved buffer handling in connection features.
4. Refined data handling processes, ensuring secure and accurate information management.
5. Enhanced file access control mechanisms, promoting a more secure operating environment.
6. Strengthened certificate protection, providing enhanced data security.

Please unzip the firmware file, and then verify the checksum.
SHA256: 9966a50a4c00af2d666ef3a1225b8e5edfcf93466e466f0aed907e3a140ad969

https://www.asus.com/ie/networking-iot-servers/whole-home-mesh-wifi-system/zenwifi-wifi-systems/asus-zenwifi-pro-xt12/helpdesk_bios?model2Name=ASUS-ZenWiFi-Pro-XT12

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[UK Sentinel]

ASUS ZenWIFI Pro XT12 Firmware version 3.0.0.6.102_35254

version 3.0.0.6.102_35254

2025/08/26

 

Important: After installing this firmware, we strongly recommend performing a factory-default reset to activate every new security adjustment.

Security Enhancements:
– Password Policy Upgrade – Minimum of 10 characters, including at least one letter, one digit, and one special character; disallows consecutive identical characters; hardens defense against brute-force attacks.
– HTTPS on 8443 – Management interface now served over TLS by default.
– UPnP Disabled – Universal Plug and Play starts in the off state for reduced surface exposure.
– Authentication Logic Refactor – Removed redundant code paths for a lean sign-in flow.
– Memory Safety Guard (CWE-476) – Introduced null-reference protections across critical services.
– Enhanced IPsec Parameter Validation – The existing input checks have been hardened.
– Data Exposure Mitigation (CWE-200) – Reinforced controls on sensitive pathways.
– Detailed Audit Trails – Expanded logging within the authentication module.

System Improvements:
– Connection Stability – Core algorithms refined for steadier links.
– Scheduling Accuracy – Timed tasks execute reliably under PPPoE, PPTP and L2TP WAN modes.
– Client List Maintenance – Resolved an issue that prevented offline devices from being removed from the client list

 

 

 

https://www.asus.com/networking-iot-servers/whole-home-mesh-wifi-system/zenwifi-wifi-systems/asus-zenwifi-pro-xt12/helpdesk_download/

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