Is this vulnerability remotely exploitable over the network?

Yes. An attacker who can reach the SmartServer's LON IP‑852 management interface can send crafted management messages that may lead to remote OS command execution, subject to network reachability and any upstream access controls.

Does an attacker need valid credentials or authentication to exploit this issue?

Public details indicate that specially crafted IP‑852 management messages are sufficient, implying that exploitation may not require standard user authentication, though network-level access controls and segmentation can still limit who can reach the interface.

What is the safest general fix pattern for developers and vendors?

Refactor the IP‑852 management handling code to eliminate shell-based command construction, use parameterized system APIs, and implement strict validation and canonicalization for all fields derived from management messages before they influence any OS-level operation.

Severity:

HIGH RISK

(8.1)

OS Command Injection (CWE-77) in EnOcean SmartServer IoT IP-852 Management Interface

CVE-2026-20761

Published:

Feb 20, 2026

Status:

Awaiting Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-77

Impact:

Remote Code Execution on Embedded IoT Device

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-77

Impact:

Remote Code Execution on Embedded IoT Device

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

OS Command Injection (CWE-77) in EnOcean SmartServer IoT IP-852 Management Interface

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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