CVE-2026-59693: Siemens Desigo DXR2 · Unchecked Error Condition
Affects Siemens Desigo DXR2Source CVE Database V5
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 10 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, affected devices may require manual reset or reboot after exploitation to restore functionality.
Description
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.