ENKR

RT-AC88U

Ended

Security updates ended March 2025

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Dates and sources

Dates and sources

Calculated ASUS’s firmware page marks this model as end-of-life without a date, so I use the release date of its final firmware (March 17, 2025).

Key dates

Release
By June 2018 at the latest
The maker gives no launch date. This is the month of the first update: the launch was in it or before.
Last update
March 17, 2025 · version 3.0.0.4.386_48322
End of support
March 17, 2025 · calculated by us from the maker’s data
How I calculated it: ASUS’s firmware page for this model says it reached end of life and its firmware will no longer be updated, next to the final firmware 3.0.0.4.386_48322. ASUS gives no separate date, so we use that final firmware’s release date (2025-03-17).
Maker’s end-of-life list
Listed, no date given

Firmware updates

Updates I found on the maker’s pages, from June 2018 to March 2025. I read the notes of 23 of these updates and found security changes in 15.

3.0.0.4.386_48322 Security, bug fixes, new features or improvements
3.0.0.4.386_48313 Security
3.0.0.4.386_48263 Bug fixes
3.0.0.4.386.48260 Security, new features or improvements · 7 vulnerability IDs (opens in a new tab)
3.0.0.4.386.46065 Security, bug fixes, new features or improvements
18 more
3.0.0.4.386.45987 Security
3.0.0.4.386.45898 Security, bug fixes · 34 vulnerability IDs (opens in a new tab)
3.0.0.4.386.43129 Security, bug fixes, new features or improvements · 7 vulnerability IDs (opens in a new tab)
3.0.0.4.386.41700 Bug fixes
3.0.0.4.386.41535 New features or improvements
3.0.0.4.385.20631 Security
3.0.0.4.385.20630 Security, new features or improvements · 2 vulnerability IDs (opens in a new tab)
3.0.0.4.385.20585 Bug fixes, new features or improvements
3.0.0.4.385.20490 Bug fixes, new features or improvements
3.0.0.4.384.81790 Security, bug fixes, new features or improvements · 1 vulnerability ID (opens in a new tab)
8 more
3.0.0.4.384.81116 Security, bug fixes, new features or improvements
3.0.0.4.384.45717 Security
3.0.0.4.384.45713 Bug fixes
3.0.0.4.384.45708 Security, bug fixes · 2 vulnerability IDs (opens in a new tab)
3.0.0.4.384.45149 Security, bug fixes, new features or improvements · 8 vulnerability IDs (opens in a new tab)
3.0.0.4.384.32799 Bug fixes
3.0.0.4.384.32738 Security, bug fixes, new features or improvements
3.0.0.4.384.21045 Bug fixes, new features or improvements

Record

  1. Last advisory with a fix: 7 fixed

    ASUS RT-AC88U firmware 3.0.0.4.386.48260 · checked November 13, 2026

  2. as of

    Fixes received: estimated 15

    Each fix below rests partly on our inference, not only on the maker's word. By this estimate, the newest firmware we know for this model has them. Not counted in the other numbers on this page.

    Show the list: estimated fixes

    Basis: The firmware we recorded for this model is on a different version line from the fixed firmware, so we assumed it has the fix because its number or date is later.

Sources

Replacements

Among routers still getting updates

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Until you replace it

  1. Check that firmware 3.0.0.4.386_48322 or later is installed.
  2. Turn off remote (WAN) management, WPS and UPnP.
  3. Change the admin and Wi-Fi passwords.
  4. Check the vendor page in case a final firmware is listed.

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