CVE-2026-20761

A vulnerability exists in EnOcean SmartServer IoT version 4.60.009 and 
prior, which would allow remote attackers, in the LON IP-852 management 
messages, to send specially crafted IP-852 messages resulting in 
arbitrary OS command execution on the device.
Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
icscertCNA
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://enoceanwiki.atlassian.net/wiki/spaces/DrftSSIoT/pages/1475410/SmartServer+IoT+Release+Notes#Current-Stable-Release
https://enoceanwiki.atlassian.net/wiki/spaces/IEC/pages/288063529/Enhancing+Security
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-050-01.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-050-01