ZenWiFi XD6 Series(XD6/XD6S)

Firmware history

1. 3.0.0.4.388_25572 12 May 2026

   Release notes — disclosure 0.35

   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.

   Archived page, fetched 29 September 2026

2. 3.0.0.4.388_25569 18 March 2026

   Release notes — disclosure 0.39

   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.- Improved system behavior when using System diagnostic on feedback page.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.

   Archived page, fetched 29 September 2026

3. 3.0.0.4.388_25541 15 January 2026

   Release notes — disclosure 0.50

   Security Enhancements: -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. -Enhanced input parameter handling techniques to improve data processing stability and system security. -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. -Enhance system access control mechanisms. -Addressed multiple security weaknesses 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. Bug Fixes and Enhancements: -Fixed the UI compatibility issue with the Chrome browser update. -Improved compatibility with IoT devices on WPA2/WPA3 networks. -Fixed client binding issues in Mesh scenarios. -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. -Fixed a privilege escalation vector in the IFTTT token exchange mechanism. -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. -Stability enhancements.

   Archived page, fetched 29 September 2026

4. 3.0.0.4.388_23813 21 October 2024

   Release notes — disclosure 0.57

   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.

   Archived page, fetched 29 September 2026

Evidence

One archived page sits behind this record, the earliest read on 2 August 2026. Everything above was read from it, and each is kept byte for byte so it can be checked after the vendor edits the original.

Identifiers: marketing_name ZenWiFi XD6 Series(XD6/XD6S)

Judged by lifecycle-1 on 30 September 2026. How these verdicts are computed.

Machine-readable: JSON · RSS