Firmware update for MES23XX, MES33XX, MES2328I, MES35XX, MES5324. Version 4.0.27.2

MES
31 August 2026

Firmware update

Firmware Version: 4.0.27.2

The firmware and detailed description of the product capabilities are available in the Downloads or on the product page.

Added

  • Added the source-interface setting for the NTP protocol.

Fixed

  • Fixed an error where the password would be logged in plaintext during an SSH client connection when command logging was enabled;
  • Fixed an error where the Description parameter on an interface could be incorrectly assigned via SNMP;
  • Fixed an error where, during mastership transfer in a stack with active NSF, a locked port could become unlocked in an RPVST topology;
  • Fixed an error that occurred when voice vlan secure mac-learning and port-security were used together.

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