Attackers are well aware of Dahua’s default credentials. In fact, default passwords have been exploited in some of the largest IoT-based botnet attacks, including and Persirai . Here’s what can happen if you don’t change the password:
This is the fastest method for units running . Click Forgot Password on the login screen. Open the DMSS app on your smartphone. Navigate to Me > Tool Manager > Device Password Management . Scan the QR code displayed on the DVR monitor. dahua dvr default password
If the above credentials do not work, it means a custom password was set. You can use these methods to regain access: Attackers are well aware of Dahua’s default credentials
While Dahua has largely moved to hardened shells, older firmware versions exposed the Telnet daemon (port 23). Default credentials often allowed shell access, providing a foothold for lateral movement within the network. Click Forgot Password on the login screen
Dahua DVRs and NVRs traditionally use as both the default username and password. However, the exact credentials vary significantly based on the device's age and firmware version. Common Default Credentials admin / admin does not work, try these widely used factory combinations: Username: admin Password: admin (Most current models). Username: admin Password: 123456 (Common for legacy units pre-2019). Username: 888888 Password: 888888 (High-authority administrator account). Username: 666666 Password: 666666 (Lower-authority user for monitoring and playback). Username: admin Password: 9999@ (Firmware versions v3.1 through v7.x). Username: admin Password: (Leave Blank) (Some OEM variants). Modern Security (Newer Models)
Upon the first boot, the device detects the default state and forces the user to define a complex password (minimum 8 characters, combination of letters and numbers) before the GUI or web interface becomes accessible.