PT-2026-21021 · Enocean · Enocean Smartserver Iot

Amir Zaltzman · Published 2026-02-20 · Updated 2026-04-30 · CVE-2026-20761

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions EnOcean SmartServer IoT versions prior to 4.60.009

Description A flaw exists that allows remote attackers to execute arbitrary operating system commands on the device. The issue is due to the ability to send specially crafted IP-852 messages within LON IP-852 management messages. The vulnerability affects the device when receiving these messages.

Recommendations Update EnOcean SmartServer IoT to a version later than 4.60.009.

Fix

RCE

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2026-20761

Affected Products

Enocean Smartserver Iot

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2026-20761 · Security Note
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-050-01.json · Note
• https://twitter.com/CVEnew/status/2025809073049141295 · Twitter Post
• https://cisa.gov/news-events/ics-advisories/icsa-26-050-01 · Note
• https://enoceanwiki.atlassian.net/wiki/spaces/IEC/pages/288063529/Enhancing+Security · Note
• https://reddit.com/r/pwnhub/comments/1szvq5f/enocean_smartserver_vulnerabilities_allow_remote · Reddit Post
• https://twitter.com/TheHackerWire/status/2024893777043976442 · Twitter Post
• https://enoceanwiki.atlassian.net/wiki/spaces/DrftSSIoT/pages/1475410/SmartServer+IoT+Release+Notes#Current-Stable-Release · Note
• https://twitter.com/DFIR_Radar/status/2049973358364958978 · Twitter Post
• https://twitter.com/CveTodo/status/2024886360717381671 · Twitter Post
• https://twitter.com/threatcluster/status/2049851434548519144 · Twitter Post