CVE-2026-59693: Medium severity Siemens Desigo Dxr2 vulnerability

Published Aug 11, 2026
·
Updated

A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.233.16-7862), Desigo PXC3 (All versions < V01.21.233.16-7862), Desigo PXC4 (All versions < V02.21.194.36-2715), Desigo PXC5.E003 (All versions < V02.21.194.36-2715), Desigo PXC5.E24 (All versions < V02.21.194.36-2715), Desigo PXC7 (All versions < V02.21.194.36-2715). The affected devices are vulnerable to a denial-of-service (DoS) vulnerability. An attacker can exploit this issue by sending a malformed BACnet packet, causing the device to stop responding to BACnet queries. Recovery requires a device reset or reboot to restore normal functionality.

Affected Software

6 affected components
Siemens Desigo Dxr2<V01.21.233.16-7862
Siemens Desigo Pxc3<V01.21.233.16-7862
Siemens Desigo Pxc4<V02.21.194.36-2715
Siemens Desigo PXC5.E003<V02.21.194.36-2715
Siemens Desigo PXC5.E24<V02.21.194.36-2715
Siemens Desigo PXC7<V02.21.194.36-2715

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Desigo DXR2 to a version that resolves this vulnerability.

    Fixed in V01.21.233.16-7862
  2. Upgrade

    Upgrade Desigo PXC3 to a version that resolves this vulnerability.

    Fixed in V01.21.233.16-7862
  3. Upgrade

    Upgrade Desigo PXC4 to a version that resolves this vulnerability.

    Fixed in V02.21.194.36-2715
  4. Upgrade

    Upgrade Desigo PXC5.E003 to a version that resolves this vulnerability.

    Fixed in V02.21.194.36-2715
  5. Upgrade

    Upgrade Desigo PXC5.E24 to a version that resolves this vulnerability.

    Fixed in V02.21.194.36-2715
  6. Upgrade

    Upgrade Desigo PXC7 to a version that resolves this vulnerability.

    Fixed in V02.21.194.36-2715
  7. Operational

    If the BACnet service stops responding, perform a device reset or reboot to restore normal BACnet functionality.

Event History

Aug 11, 2026
CVE Published
via MITRE·12:20 PM
Data Sourced
via MITRE·12:20 PM
DescriptionSeverityWeakness
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