Three Phase Intelligent LCD PDU Firmware Version 1.2.3 Released

April 29, 2026 by CyberPower

CyberPower has released an update to our Three Phase Intelligent LCD PDUs Firmware. Please read on for feature improvement details and a quick link to download the v1.2.3 update.

Three Phase Intelligent LCD PDU Firmware Version 1.2.3 (US Release Date: 4/20/2025)

New Features

  • Adds support for Restful API

Feature Improvements

  • Enables LDAP group configuration in the Command Line Interface (CLI)
  • Now enables IPv6 by default
  • Expands the SMTP server password length up to 127 characters

Fixes

  • A problem where the login event is incorrectly logged as an administrator when the outlet user or viewer logs in on the Command Line Interface (CLI) has been resolved
  • Resolves an issue where the AutoPing action is not restored by the Restore Configuration
  • Fixes an error where the Authentication Type in the “radius pri/sec show” command output of the Command Line Interface (CLI) is displayed incorrectly
  • Fixes a problem when the Radius server is unavailable, Local accounts cannot log in using the Local+Radius login method
  • Corrects a problem where PDU fails to login through the LDAP/RADIUS secondary server when a Domain Name System (DNS) resolution failure occurs on the primary server
  • Resolved an issue where the PDU fails to login through the local account when a DNS resolution failure occurs on the LDAP/RADIUS primary server
  • Fixes a problem where the DNS no longer responds when the DNS resolution failure occurs on the NTP server and other services at the same time
  • Fixed an error where the SNMP request GETBULK was no longer accessible after exceeding the last OID (1.3.6.1.6.3.15.1.1.6.0) in the MIB
  • Fixes an issue where sending multiple Syslog events at once may lead to failure of some system functions
  • Correct an issue where the system reboots if an unexpected OID is used in the SNMP GETBULK command
  • Fixes a problem where the events containing outlet names are displayed incorrectly on Web interface after setting the outlet names via Command Line Interface (CLI)
  • Corrects a problem where enabling HTTPS with SSH, that is already enabled, may cause SSH to return a “connection refused” error
  • Solves an issue where the Outlet user/Viewer account is able to upload files via Secure Copy Protocol (SCP)
  • Security updates on Web service completed

Questions? Contact Tech Support Monday through Friday from 7am– 6pm cst.
Download link and release notes are available here:
https://www.cyberpowersystems.com/product/software/firmware/3-phase-pdu-lcdfirmware-v121/