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ASUS RT-AX59U Firmware version 3.0.0.4.388_34098
バージョン 3.0.0.4.388_34098
40.43 MB
2026/08/12
SHA-256 :98C842FAA66C1BF85806314E5776A6D356A89ED9E75E730FED86CFC2D8789E99

New Features
- New Time Zone Options: Added "Vancouver, Whitehorse (PST7)" and "Edmonton, Yellowknife (MST6)" time zone options for Canada.

Bug Fixes and Enhancements
- Improved stability during the AiMesh node setup process.

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.
- 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-AX59U Firmware version 3.0.0.4.388_34013
バージョン 3.0.0.4.388_34013
40.35 MB
2026/05/06
SHA-256 :A20147E814F8A89A65B2D27CE0EFD363101BEA4FF2AEF31672E3DF3CE059F31C

Security Fixes
- Enhanced system security by addressing an unsafe remote script execution mechanism in.
- Improved system security by addressing a heap buffer overflow vulnerability during cache handling.
We recommend upgrading to this version to ensure up-to-date protection.

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ASUS RT-AX59U Firmware version 3.0.0.4.388_34011
バージョン 3.0.0.4.388_34011
40.36 MB
2026/03/16
SHA-256 :5B686B01F10760D86FC93029F868BF7820566DE808D05AB3840F2B0740AFBB8E

Improvements:
Optimized Wi-Fi roaming stability for devices supporting 802.11k but not allowing 11v.
Improved Wi-Fi roaming compatibility and stability for iOS 26 devices.
Refined accessibility-related UI and interaction details.
Improved overall remote connection stability.

Security Enhancements:
Strengthened input sanitization mechanism
Enhanced system API validation for stronger protection consistency.
Strengthened command handling and system resource access controls.
Improved system logging and security event recording mechanisms

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33965
バージョン 3.0.0.4.388_33965
40.38 MB
2025/10/23
SHA-256 :FFE1483B3E82AD7581C3C95E12D38009FA8DC63B57D416079AB79FA91F6531BF

- Enhanced system stability.
- Enhanced input validation and refactored legacy string handling routines to ensure robust memory management.
- 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-AX59U Firmware version 3.0.0.4.388_33950
バージョン 3.0.0.4.388_33950
40.39 MB
2025/09/09
SHA-256 :6C7FD6FBA7D1C676FA626D9A043DC88C3CC9F450AD7DFD615C54362C7A9A0B07

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.
- AiCloud Authentication Hardening (CWE-287) – Added layered verification.
- 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

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33911
バージョン 3.0.0.4.388_33911
38.87 MB
2025/05/27
SHA-256 :D51E496AB2CE7CC57819171653F13D09666B3853B0A2DFE7E989132E85169800

Fixed the IPTV compatibility issue for Now TV.

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33903
バージョン 3.0.0.4.388_33903
38.87 MB
2025/03/13
SHA-256 :02583B0D0012EF1CB8D65EB39C96CEE0F9A1B2D660321F5FB0D6C6636BAEC7D8

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

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33407
バージョン 3.0.0.4.388_33407
37.95 MB
2024/12/27
SHA-256 :189F69785031E9C79EEE6B8ACB659D61A540EDA9254A440EB3267E639A7A6025

1. Improved the stability of AiMesh backhaul connections, resulting in a more robust and reliable mesh network performance.
2. Strengthened input validation and data processing workflows, further protecting your information security.

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33405
バージョン 3.0.0.4.388_33405
37.95 MB
2024/12/04

Please unzip the firmware file, and then verify the checksum.
SHA256: 5d9e0a126515610ac7cfe4f92a02fa03ffe4e37cce8eea9167e72814f807c846

- Resolved an issue where the Traffic Analyzer feature was not functioning properly.

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33404
バージョン 3.0.0.4.388_33404
37.95 MB
2024/11/07

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: e8ad8b4a89a53b936e85d53072bac38cf26e8711caf58b427c1d822d70ec3e0b

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33392
バージョン 3.0.0.4.388_33392
37.96 MB
2024/06/28

Bug Fixes and Enhancements:
Resolved an issue where the Traffic Analyzer feature was not functioning properly.

Please unzip the firmware file, and then verify the checksum.
SHA256:1ae099aa07ffaa06a798a039c0117defa4d8f362ab467becae4ddcd384652dd9

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33391
バージョン 3.0.0.4.388_33391
37.96 MB
2024/05/02

Bug Fixes and Enhancements:
- Enhanced AiMesh Stability
- Fixed an issue where the RE product ID was not being updated in the AiMesh topology.
- Added DS-Lite Support.
- Corrected a display issue in the OpenVPN server that prevented IPv6 settings from showing correctly.
- Fixed a persistent GUI issue on 'Let's Encrypt Authorization' that displayed 'Authorization' incorrectly.
- Resolved a bug that prevented offline devices from being deleted in the Router App.
- Fixed an issue where the system would reboot due to parental control rules with empty enable fields.

Security updates:
- Addressed CVE-2023-48795 by updating the dropbear SSH server.
- Applied patches for CVE-2023-5678 & CVE-2024-0727
- Improved security in OpenVPN custom configuration.

Please unzip the firmware file, and then verify the checksum.
SHA256: adc347d7b53da23f1a71f857af69dbb071ca36b608dbbce14440b635beddac64

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ASUS RT-AX59U Firmware version 3.0.0.4.388_33147
バージョン 3.0.0.4.388_33147
37.79 MB
2024/03/14

Bug fixes and functionality modifications:
1. Resolved IPTV interruptions during extended use.
2. Addressed Guest Network performance issues with active IPTV.
3. Fixed potential Aura RGB crash.
4. Added eXtra Long Range support for enhanced connectivity.
5. Rectified potential IPV6-related crashes.
6. Improved roaming efficiency for AiMesh nodes under weak signals.
7. Addressed router crashes during WireGuard setup.
8. Fixed abnormal activation status in the Gear Accelerator function UI

Please unzip the firmware file, and then verify the checksum.
SHA256: ba3c8069f1e5747fd9ea984c96926763265f36f26a49af1a8362d1d5676d6752

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ASUS RT-AX59U Firmware version 3.0.0.4.388_32702
バージョン 3.0.0.4.388_32702
37.26 MB
2023/10/27

1. Fixed vpn client related issues.
2. Improve system stability.

Please unzip the firmware file, and then verify the checksum.
SHA256: d161da4f151e84663f5fe692a2dd6ad520ab98b232fe1d1a5b1cc77314266d17

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ASUS RT-AX59U Firmware version 3.0.0.4.388_32431
バージョン 3.0.0.4.388_32431
37.02 MB
2023/08/14

Security:
Fixed command injection vulnerabilities
Fixed remove ookla-IPQ956X
Fixed vulnerability in command injection after authentication
Fixed XSS potentially via malformed hostname in DHCP request
Fixed Fixed Stored Cross Site Scriptin
Fixed XSS attack via EXT3 USB in foldername
Fixed ping '-c' parameter in administration Network Tools is validated only on client side

Feature:
Add OCN Support.
Fixed v6plus related issues.
Fixed AiMesh node under Ethernet backhaul issues.
Fixed GUI bugs while searching for AiMesh Node.
Fixed USB function related issues.

Please unzip the firmware file, and then verify the checksum.
SHA256: 9d0ca28d1f4d506939b99df7b205c7bcc8f333340583f747bdb4693d7e3586f4

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ASUS RT-AX59U Firmware version 3.0.0.4.388_32198
バージョン 3.0.0.4.388.32198
36.87 MB
2023/06/20

1. Imporve system stability.
2. Fix speed issue under QoS.
3. Add Time machine.
4. Fix GUI issues.

Please unzip the firmware file, and then verify the checksum.
SHA256: 6582dbcf307569936088c26e45e56a8102ff7bc4b8d4b30b01bed3ff16958ce0

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ASUS RT-AX59U Firmware version 3.0.0.4.388.31948
バージョン 3.0.0.4.388.31948
36.63 MB
2023/04/26

- Fixed AiMesh related issues.
- Fixed wireless setting related issues.
- Fixed minor GUI issues.
- Supports smart connect.
- Supports more USB functions.
- Supports iPhone tether.

Please unzip the firmware file first then check the MD5 code.
MD5: 1e2e9d190f01aeab93820ae6c8a6ccdc

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ASUS RT-AX59U Firmware version 3.0.0.4.388.31345
バージョン 3.0.0.4.388.31345
30.98 MB
2023/01/06

Initial release

Please unzip the firmware file first then check the MD5 code.
MD5: 068e3299be04c8c45c276d6fcdeea903

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  • HDMI、HDMI High-Definition Multimedia Interfaceという語、HDMIのトレードドレスおよびHDMIのロゴは、HDMI Licensing Administrator, Inc.の商標または登録商標です。
    • USB 3.0、3.1、3.2、および/またはType-Cの実際の転送速度は、ホストデバイスの処理速度、ファイル属性、およびシステム構成と動作環境により異なります。
    • ワイヤレスの特性上、ご利用になる建物の構造・材質、障害物、設置状況、電波状況などの使用環境により、通信速度の低下や想定した数値と異なる場合がありますのであらかじめご了承ください。
    • 現在のIEEE 802.11ac/802.11ax規格に基づく、ネットワーク速度と帯域幅を引用。実際の性能は、ネットワークおよびサービスプロバイダーの要因、インターフェイスの種類、およびその他の条件の影響を受ける可能性があります。十分な結果を得るためには、接続デバイスが802.11ac/802.11ax規格に対応している必要があります。
    • WPA/WPA2エンタープライズはシングルルーターでのみ使用可能で、AiMeshモードでは使用できません。
    • 従来のQoSを有効にした場合、実際のインターネットサービスの帯域幅や環境の違いにより制限が生じ、速度が低下する恐れがあります。
    • USB外付けハードディスクと4G/5Gモデム端末の電源要件が異なるため、外付けデバイスを安定して使用できるように、USB外付けデバイスが標準USB 2.0 (5V/500mA) およびUSB 3.1 Gen 1 (5V/900mA) の電源要件を超える場合は、独立した外部電源で使用する必要があります。
    • 本製品を第三者のサービスと組み合わせて使用する場合、お客様は第三者のサービス提供者の利用規約およびプライバシーポリシーを遵守する責任を負い、またそれらの使用によるリスクも負うものとします。ASUSは、ASUS製品以外の製品に対するサポートや継続的な統合サポートの提供はいたしません。