Is this vulnerability remotely exploitable over the internet?

It can be, if the FUXA WebSocket interface is reachable from the internet or any untrusted network. Exploitability depends on network exposure and segmentation; in many ICS setups, the attack surface is limited to internal or connected networks.

Does an attacker need valid credentials to exploit this issue?

No, the issue specifically involves missing authorization checks on certain WebSocket operations, allowing unauthenticated attackers with network access to perform actions that should require an authenticated, authorized user.

What is the safest general fix pattern for this kind of vulnerability?

Implement centralized, server-side authorization for every state-changing WebSocket operation. Bind each WebSocket connection to an authenticated session or token, and verify that the associated user has explicit permission for each requested action, especially tag writes and driver control.

Severity:

CRITICAL RISK

(9.1)

Missing Authorization for WebSocket Tag Operations (CWE-862) in FUXA SCADA/HMI

CVE-2026-25752

Published:

Feb 6, 2026

Status:

Analyzed

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-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Missing Authorization / Access Control

CWE:

CWE-862

Impact:

Unauthorized Remote Manipulation of ICS/SCADA Tags and Drivers

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Missing Authorization / Access Control

CWE:

CWE-862

Impact:

Unauthorized Remote Manipulation of ICS/SCADA Tags and Drivers

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Missing Authorization for WebSocket Tag Operations (CWE-862) in FUXA SCADA/HMI

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

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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