News Asus Security Update for DSL Series Router: DSL-AC51, DSL-N16, DSL-AC750 (11/13/2025)

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Asus has released a Security Bulletin for the following DSL routers:
DSL-AC51
DSL-N16
DSL-AC750

CVE addressed: CVE-2025-59367

ASUS Security Advisory | Latest Vulnerability Update

Stay updated with ASUS security advisories, firmware patches, and vulnerability reports. Learn how to protect your devices and report issues.

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Security Update for DSL Series Router​

A security vulnerability has been identified in certain ASUS DSL Series Router.
ASUS recommends update to the latest firmware to ensure your device remains protected.
We have released a new firmware version 1.1.2.3_1010 which addresses this vulnerability for the models listed above.
Update Firmware

• Download and install the latest firmware version 1.1.2.3_1010 for your device from the ASUS support page or your product page at ASUS Networking.

For End-of-Life (EOL) Models (Unsupported by New Firmware)

• Please ensure that both your router login and WiFi passwords are strong and unique.
• Disable any services accessible from the internet, including:
  1. Remote access from WAN
  2. Port forwarding
  3. DDNS
  4. VPN server
  5. DMZ
  6. Port triggering
  7. FTP

General Security Tips
Use different, complex passwords for your wireless network and router administration page (atleast 10 characters, include uppercase, numbers and symbols).
Do not reuse passwords across devices or services.
1. Regularly check for new firmware and security announcements.
2. Do not reuse passwords across devices or services.
3. Regularly check for new firmware and security announcements.
Firmware and CVE Reference

Device Series​	Fixed Firmware​
DSL-AC51​	1.1.2.3_1010​
DSL-N16​	1.1.2.3_1010​
DSL-AC750​	1.1.2.3_1010​

For further guidance
How to update the firmware of your router to the latest version
CVE-2025-59367
CVSS:4.0 Score : 9.3 / Critical
AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Last Updated: November 13, 2025 (GMT+8)