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TI-2026-42569 Aliases CVE-2026-59693GHSA-m7fp-mx3h-5426

Improper check for unusual conditions in Siemens Desigo DXR2

Priority LOW 24CWE-754Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0024 15th percentileScored 2026-11-07
Fix Fixed Desigo DXR2 (Siemens): V01.21.233.16-7862Desigo PXC3 (Siemens): V01.21.233.16-7862+4 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensDesigo DXR2before V01.21.233.16-7862V01.21.233.16-7862Patch availableCNA
SiemensDesigo PXC3before V01.21.233.16-7862V01.21.233.16-7862Patch availableCNA
SiemensDesigo PXC4before V02.21.194.36-2715V02.21.194.36-2715Patch availableCNA
SiemensDesigo PXC5.E003before V02.21.194.36-2715V02.21.194.36-2715Patch availableCNA
SiemensDesigo PXC5.E24before V02.21.194.36-2715V02.21.194.36-2715Patch availableCNA
SiemensDesigo PXC7before V02.21.194.36-2715V02.21.194.36-2715Patch availableCNA
  • Desigo DXR2 VendorSiemens Affected before V01.21.233.16-7862 Fixed in V01.21.233.16-7862 Patch available CNA
  • Desigo PXC3 VendorSiemens Affected before V01.21.233.16-7862 Fixed in V01.21.233.16-7862 Patch available CNA
  • Desigo PXC4 VendorSiemens Affected before V02.21.194.36-2715 Fixed in V02.21.194.36-2715 Patch available CNA
  • Desigo PXC5.E003 VendorSiemens Affected before V02.21.194.36-2715 Fixed in V02.21.194.36-2715 Patch available CNA
  • Desigo PXC5.E24 VendorSiemens Affected before V02.21.194.36-2715 Fixed in V02.21.194.36-2715 Patch available CNA
  • Desigo PXC7 VendorSiemens Affected before V02.21.194.36-2715 Fixed in V02.21.194.36-2715 Patch available CNA

Remediation

  • Fix · CNA Desigo DXR2 (Siemens) Fixed in V01.21.233.16-7862
  • Fix · CNA Desigo PXC3 (Siemens) Fixed in V01.21.233.16-7862
  • Fix · CNA Desigo PXC4 (Siemens) Fixed in V02.21.194.36-2715
  • Fix · CNA Desigo PXC5.E003 (Siemens) Fixed in V02.21.194.36-2715
  • Fix · CNA Desigo PXC5.E24 (Siemens) Fixed in V02.21.194.36-2715
  • Fix · CNA Desigo PXC7 (Siemens) Fixed in V02.21.194.36-2715

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59693
  2. 2026-10-03 Alias added: GHSA-m7fp-mx3h-5426

References

Other 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
See all 2487 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences