RT-AX88U Pro
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BIOS & FIRMWARE

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Firmware
ASUS RT-AX88U PRO Firmware version 3.0.0.6.102_37485
Version 3.0.0.6.102_37485
69.46 MB
2026/09/22
SHA-256 :6B61E260680397184A5C3F2458E8934A9C93244D9AA2E945A88E6B7BD9E67B48

Security Fixes
Strengthened data handling in Networks configuration functions.
Improved data validation in Networks rule list processing.
Fixed a data-handling issue in the DNS query caching component.
Strengthened verification when a software component downloads - external resources, improving connection security.
Adjusted the information response mechanism of the device discovery service, strengthening protection of device information.
Fixed a data-handling issue in a firmware component on a specific model.
Improved data-display handling in a web function to enhance browsing security.
Strengthened input data validation in a device-pairing web function.
Improved data validation in the configuration file upload/sync function.
Improved how the account service restart process is handled.
Removed a non-essential internal function endpoint, strengthening overall access control.
Adjusted the debug file access mechanism, strengthening protection of internal data.
Strengthened data handling in the system logging function.

We recommend upgrading to this version to maintain optimal protection.

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ASUS RT-AX88U PRO Firmware version 3.0.0.6.102_37436
Version 3.0.0.6.102_37436
69.36 MB
2026/05/04
SHA-256 :6909215AD728C11818959F372E49C0DD245AFD155143C43E2C02C915AADD26AE

Security Fixes
- Enhanced DNS name handling to address a potential memory issue that could occur in rare cases during name format conversion, improving system security and robustness.
- Improved safeguards for execution modules to reduce the risk of substitution during certain processes.

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ASUS RT-AX88U Pro Firmware version 3.0.0.6.102_37421
Version 3.0.0.6.102_37421
69.2 MB
2026/03/24
SHA-256 :F40629FF39542AC2E72DAA8AA1E9ECC3D45677225D4EA46B55BBFC93E6931B9A

Bug Fixes and Enhancements
- Improved WiFi roaming behavior to reduce temporary disconnections in some scenarios.
- Improved roaming compatibility for certain client devices.
- Improved App Remote Connection stability in certain scenarios to prevent unexpected connection drops.
- Improved AiMesh onboarding reliability, addressing cases where the onboarding process could stall and fail to complete.
- Fixed an issue where the guest network client list might not display correctly in certain scenarios.
- Fixed an issue with Web history display.
- Fixed an issue where the app could not remove offline devices.
- Fixed an issue where specific IPv6 configuration flows could cause IPv6 connectivity problems on the main network.
- Fixed an issue where enabling System Diagnostics and staying on a specific page could cause repeated reboots.

Security Fixes
- Enhanced input validation and protection to reduce the risk of command injection and SQL injection.
- Hardened environment variable handling.
- Hardened protections around specific logging/command composition flows to reduce potential injection risks.
- Patched a command injection risk in a specific network diagnostic function.
We recommend upgrading to this version to maintain best protection.

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ASUS RT-AX88U Pro Firmware version 3.0.0.6.102_33421
Version 3.0.0.6.102_33421
67.95 MB
2025/10/27
SHA-256 :6CE30822668E16C8D08CB96019DD8F1FC30360E0EA1F740664CB50235514211D

- Enhanced system stability.
- Enhanced input validation and refactored legacy string handling routines to ensure robust memory management.
- Mitigated security risks in AiCloud service by enforcing strict credential verification, implementing robust file path validation, and hardening command execution logic to prevent unauthorized access and manipulation of system resources.
- Implemented comprehensive validation and expanded command filtering in the web history API.
- Strengthened input validation and directory handling in the VPN configuration upload interface.
- Fixed an issue that allowed certain user settings to be bypassed, improving overall user control and protection.

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ASUS RT-AX88U Pro Firmware version 3.0.0.6.102_33352
Version 3.0.0.6.102_33352
67.93 MB
2025/03/19
SHA-256 :12073EB924C6034843ADB05BBABF9F20D78A66955CBF62750AD68A8E7536D648

1. Fixed the UI issue in Chrome.
2. Fixed client binding issues in Mesh scenarios.
3. Enhanced input parameter handling techniques to improve data processing stability and system security.
4. Enhance system access control mechanisms.

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ASUS RT-AX88U Pro Firmware version 3.0.0.6.102_33340
Version 3.0.0.6.102_33340
67.97 MB
2024/11/12

Please unzip the firmware file, and then verify the checksum.
SHA256: 46a70e35a0e57f93ac847be136f5b6012a1fe9c5b3b953bc2cf4b446a8cff3c9

Bug Fixes and Enhancements:
- Fixed display issues on the AiMesh page.

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

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ASUS RT-AX88U Pro Firmware version 3.0.0.6.102_33320
Version 3.0.0.6.102_33320
67.73 MB
2024/09/27

1. Optimized memory management mechanisms, improving system efficiency and stability.
2. Strengthened input validation and data processing workflows, further protecting your information security.
3. Improved web rendering engine, enhancing browsing experience and security.
4. Enhanced security of system command processing to guard against potential malicious operations.
5. Perfected JavaScript-related security mechanisms, offering a more secure web interaction environment.
6. Fixed the incorrect display of the DNS List interface.

Please unzip the firmware file, and then verify the checksum.
SHA256: d58b05bcf71ae256033369c6ef0c970ba8d52429700aeffdc5619c773ec51d91

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  • Products certified by the Federal Communications Commission and Industry Canada will be distributed in the United States and Canada. Please visit the ASUS USA and ASUS Canada websites for information about locally available products.
  • All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
  • Specifications and features vary by model, and all images are illustrative. Please refer to specification pages for full details.
  • PCB color and bundled software versions are subject to change without notice.
  • Brand and product names mentioned are trademarks of their respective companies.
  • The terms HDMI and HDMI High-Definition Multimedia Interface, HDMI trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.
    • The actual transfer speed of USB 3.0, 3.1, 3.2, and/or Type-C will vary depending on many factors including the processing speed of the host device, file attributes and other factors related to system configuration and your operating environment.
    • Actual data throughput and WiFi coverage will vary from network conditions and environmental factors, including the volume of network traffic, building material and construction, and network overhead, result in lower actual data throughput and wireless coverage.
    • Quoted network speeds and bandwidth based on current IEEE 802.11ac specifications. Actual performance may be affected by network and service provider factors, interface type, and other conditions. Connected devices must be 802.11ac-compatible for best results.
    • WPA/WPA2 enterprise is only available on single router, is not available under AiMesh mode.
    • When traditional QoS is enabled, there will be limitations due to the actual Internet service bandwidth and different environment, and there may be a risk of speed reduction.
    • Due to the different power supply requirements on USB external hard disk and 4G/5G Modem device, to ensure that the external device can be used stably, if the USB external device exceeds the standard USB 2.0 (5V/500mA) and USB 3.1 Gen 1 (5V/900mA) power supply requirements, you need to use it with an independent external power supply.
    • If you use the product in conjunction with a third party service, you are responsible for complying with the third party provider's terms and conditions and privacy policy and are also at the risk of such use. ASUS does not provide support or guarantee continuous integration support for products that are not part of ASUS.
    • ASUS makes no representations or warranties about this product’s compatibility with future standards.
    • 6GHz band is limited to indoor range. Clients must support 6GHz band.
    • MU-MIMO capability requires both router and client device to support MU-MIMO.
    • For models with Time machine support, starting with macOS 26 (Tahoe), Time Machine no longer supports creating new backups on USB-connected storage devices. Existing Time Machine drives that were previously configured remain compatible and can continue to be used for backup and restoration.