CVE-2026-59693: Desigo DXR2 (All · Unchecked Error Condition
Source GCVE Database
Not known to be exploited · CVSS 4.3 Medium : upgrade to 01.21.233.16-7862 when convenient.
Data as of 9 Nov 2026, 23:24 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 01.21.233.16-7862, 02.21.194.36-2715
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Upgrade Desigo to 01.21.233.16-7862 (DXR2, PXC3) or 02.21.194.36-2715 (PXC4, PXC5.E003, PXC5.E24, PXC7).
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SiemensDesigo DXR2 | Affected
| Fixed in
|
| SiemensDesigo PXC3 | Affected
| Fixed in
|
| SiemensDesigo PXC4 | Affected
| Fixed in
|
| SiemensDesigo PXC5.E003 | Affected
| Fixed in
|
| SiemensDesigo PXC5.E24 | Affected
| Fixed in
|
| SiemensDesigo PXC7 | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, administrators should consider network-level controls to restrict unauthorized BACnet traffic to these devices. Monitoring for unusual BACnet traffic patterns may help detect exploitation attempts. Manual device reset or reboot is required to recover from the DoS condition.
Description
A denial-of-service (DoS) vulnerability exists in multiple Siemens Desigo devices, including DXR2, PXC3, PXC4, PXC5.E003, PXC5.E24, and PXC7. The issue is triggered by sending a malformed BACnet packet, causing the affected device to stop responding to BACnet queries. Recovery requires a manual device reset or reboot. The vulnerability affects versions prior to V01.21.233.16-7862 for DXR2 and PXC3, and prior to V02.21.194.36-2715 for PXC4, PXC5.E003, PXC5.E24, and PXC7. The CVSS score is 4.3, indicating a medium severity impact focused on availability.