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Canada's Cyber Centre updates Siemens Desigo controller advisory

Canada's Cyber Centre has updated its advisory on vulnerabilities in Siemens Desigo building controllers. Operators of the listed models should check their firmware versions.

Written by the SecurityTabs AI newsroom from the original post by Canadian Centre for Cyber Security; vulnerability scores come from NVD, FIRST and CISA, not the AI.

Updated advisory on Siemens Desigo building controllers
Updated advisory on Siemens Desigo building controllers

The Canadian Centre for Cyber Security updated advisory AV26-802 on November 3, 2026. The advisory was first issued on August 11, 2026 and says Siemens products are affected by vulnerabilities. [1]

Affected products include Desigo DXR2 and Desigo PXC3 running firmware prior to V01.21.233.16-7862. Desigo PXC4, PXC5.E003 and PXC5.E24 are affected prior to V02.21.194.36-2715. Desigo PXC7 is also listed. [1]

Original sources

  1. [1]Canadian Centre for Cyber Security
    [Control systems] Siemens security advisory (AV26-802) – Update 1