Release ASUS RT-AC86U Firmware version 3.0.0.4.386_52294 (2025/10/28)

[fruitcornbread]

Version 3.0.0.4.386_52294
66.52 MB
2025/10/28

- 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.G1
- 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.

ZIP SHA-256 : 6107D58AD49C767B64A69B125E20349C21A28A4729E67422EF5AC179688D7C32
FW SHA-256 : e04142da1d2a3ea90cded26b1d4047e9bb593c162c3ea17be47b150dd6a7e1ae

Download: https://dlcdnets.asus.com/pub/ASUS/wireless/RT-AC86U/FW_RT-AC86U_300438652294.zip?model=RT-AC86U

RT-AC86U｜WiFi Routers｜ASUS Global

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[visortgw]

Apparently not EOL, yet...

 

[visortgw]

Download Page (link above expired).

 

[heysoundude]

Apparently not EOL, yet...

well, why would they do that? these are still mostly chugging along happily.

In my case I've made it a switch on my network by disabling the radios in AP mode since my AX88Pro is more than adequate wirelessly. It sits on the opposite side of the house from the RT-N66u doing exactly the same thing in the same way for about twice as long. (I was also rather amused/surprised to see how recently the last update for THAT was released!)

I've been pondering their ends-of-life functionality-wise, and considering their presumed eventual replacements, but upgrading to 2.5GHz is still a little spendy, even if I buy on AliExpress. I mean, they may be ancient by certain standards, but they're still packet pushing champs. I can't justify paying to upgrade with a 120/20Mbps ISP line speed...but the competition is heating up for me to change over to 1Gbps/300Mbps, so...if the monthly price for that drops below what I'm paying, or someone brings glass to the house for the same money...

 

[visortgw]

well, why would they do that? these are still mostly chugging along happily.

In my case I've made it a switch on my network by disabling the radios in AP mode since my AX88Pro is more than adequate wirelessly. It sits on the opposite side of the house from the RT-N66u doing exactly the same thing in the same way for about twice as long. (I was also rather amused/surprised to see how recently the last update for THAT was released!)

I've been pondering their ends-of-life functionality-wise, and considering their presumed eventual replacements, but upgrading to 2.5GHz is still a little spendy, even if I buy on AliExpress. I mean, they may be ancient by certain standards, but they're still packet pushing champs. I can't justify paying to upgrade with a 120/20Mbps ISP line speed...but the competition is heating up for me to change over to 1Gbps/300Mbps, so...if the monthly price for that drops below what I'm paying, or someone brings glass to the house for the same money...

EOL reached about a year or so ago...

 

[Tech9]

these are still mostly chugging along happily

Mass update of EoL models means critical vulnerability discovered.