Replacement firmware
Beta build · 10-13-2026-r66345
Browse firmware downloadsdownload1.dd-wrt.comRouter
ASUS RT-AC88U
Projects for this device
Replacement firmware
Replace router software with a customizable system for network controls and community packages.
How to get started
Follow the guide for your exact router version. The first installation may use its web interface, recovery mode or a serial connection.
- Setup
- Firmware replacement; route varies by router
- You’ll need
- Exact hardware revision, an appropriate OpenWrt release and its model-specific installation guide.
- Hardware revision not specified
- Get OpenWrt firmware Release listed · 25.12.6
- (5.01)
- Open hardware record
Recorded configuration: 128NAND MB flash; 512 MB RAM
- Limitations
- White WAN LED
- First installation
- Asus Firmware Restoration tool; CFE TFTP recovery; CFE TFTP + serial recovery; CFE web recovery
Features & details
Check the project and hardware shown for each feature.
Device details
ASUS RT-AC88U — TechInfoDepot (github.com)ASUS RT-AC88U — WikiDevi (github.com)
- Hardware revision
- (5.01)
OpenWrt
- Installation routes recorded
- Asus Firmware Restoration tool, CFE TFTP recovery, CFE TFTP + serial recovery, CFE web recovery
- Recovery routes recorded
- Asus Firmware Restoration tool, CFE TFTP recovery, CFE TFTP + serial recovery, CFE web recovery
- Availability recorded by source
- Available 2022
Hardware details
Documented hardware
ASUS RT-AC88U — TechInfoDepot (github.com)ASUS RT-AC88U — WikiDevi (github.com)Documented hardware — Source documentation (openwrt.org)
- Processor
- Broadcom BCM4709C0
- Hardware revision
- (5.01)
- Wi-Fi chip
- Broadcom BCM4366
- Processor
- Broadcom BCM4709C0KFEBG
- Memory
- 512 MB
- Wi-Fi chip
- Broadcom BCM4366B1
- Wi-Fi chip
- Broadcom BCM4366C0
Technical references
Security
Saved scan
From our saved security research.
Model advisories
Selected highlightsPrioritized by known exploitation, severity, then date.
ASUS RT-AC88U
Main_Analysis_Content.asp in /apply.cgi on ASUS RT-AC66U, RT-AC68U, RT-AC86U, RT-AC88U, RT-AC1900, RT-AC2900, and RT-AC3100 devices before 3.0.0.4.384_10007; RT-N18U devices before…
- Affected firmware
- Version details in source scope
- Fix
- Fix details in the linked record
Details and sources
Main_Analysis_Content.asp in /apply.cgi on ASUS RT-AC66U, RT-AC68U, RT-AC86U, RT-AC88U, RT-AC1900, RT-AC2900, and RT-AC3100 devices before 3.0.0.4.384_10007; RT-N18U devices before 3.0.0.4.382.39935; RT-AC87U and RT-AC3200 devices before 3.0.0.4.382.50010; and RT-AC5300 devices before 3.0.0.4.384.20287 allows OS command injection via the pingCNT and destIP fields of the SystemCmd variable.
ASUS RT-AC88U
Stack buffer overflow in httpd in Asuswrt-Merlin firmware 380.67_0RT-AC5300 and earlier for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U,…
- Affected firmware
- Version details in source scope
- Fix
- Fix details in the linked record
Details and sources
Stack buffer overflow in httpd in Asuswrt-Merlin firmware 380.67_0RT-AC5300 and earlier for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code on the router by sending a crafted http GET request packet that includes a long delete_offline_client parameter in the url.
ASUS RT-AC88U
Stack-based buffer overflow in ASUS_Discovery.c in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U,…
- Affected firmware
- Version details in source scope
- Fix
- Fix details in the linked record
Details and sources
Stack-based buffer overflow in ASUS_Discovery.c in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code via long device information that is mishandled during a strcat to a device list.
ASUS RT-AC88U
Stack buffer overflow in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1,…
- Affected firmware
- Version details in source scope
- Fix
- Fix details in the linked record
Details and sources
Stack buffer overflow in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code on the router by hosting a crafted device description XML document (that includes a serviceType element) at a URL specified within a Location header in an SSDP response.
ASUS RT-AC88U
Global buffer overflow in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1,…
- Affected firmware
- Version details in source scope
- Fix
- Fix details in the linked record
Details and sources
Global buffer overflow in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to write shellcode at any address in the heap; this can be used to execute arbitrary code on the router by hosting a crafted device description XML document at a URL specified within a Location header in an SSDP response.