Medium SSA-781903 1 CVE

SSA-781903: Denial of Service Vulnerability in Desigo DXR and PXC Controllers

Published Aug 11, 2026 · Updated Aug 11, 2026

Vendor: Siemens Product: Desigo DXR2 Product: Desigo PXC3 Product: Desigo PXC4 Product: Desigo PXC5.E003 Product: Desigo PXC5.E24 Product: Desigo PXC7

Summary

A vulnerability in Desigo DXR and PXC controllers has been identified that could allow an attacker to cause denial of service conditions by sending malformed BACnet packets. Recovery requires a device reset or reboot to restore normal functionality.

Siemens has released new versions for the affected products and recommends to update to the latest versions.

Vulnerabilities 1

Medium 4.3

CVE-2026-59693

A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.233.16-7862), Desigo PXC3 (All versions < V01…

Siemens Desigo PXC4 Desigo DXR2 Desigo PXC3 ICS / OT

Aug 11, 2026

Revision history

2026-08-11 #1
Publication Date

References

SSA-781903: Denial of Service Vulnerability in Desigo DXR and PXC Controllers - HTML Version
https://cert-portal.siemens.com/productcert/html/ssa-781903.html