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CVE-2026-20761

Published: Feb 20, 2026

Modified: Feb 20, 2026

PUBLISHED

CVSS v3.1

8.1

HIGH

Description

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.

Vendor	Product	Versions
EnOcean Edge Inc	SmartServer IoT	affected `0 - <= 4.60.009` unaffected `4.60.023`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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://www.cisa.gov/news-events/ics-advisories/icsa-26-050-01

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-050-01.json

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