Is this vulnerability remotely exploitable?

Yes. As described, an unauthenticated, remote attacker who can reach the FUXA web interface over the network can exploit the heartbeat refresh API to gain administrative access and ultimately execute code on the server.

Does an attacker need valid credentials or an existing account?

No. The issue is an authentication bypass: exploitation does not require valid credentials or an existing user account, only network reachability to the vulnerable endpoint.

What is the safest general fix pattern for this type of issue?

The safest approach is to enforce strict authentication and authorization checks on all endpoints that affect session state or administrative capabilities, including background or heartbeat APIs, and to ensure that code-execution or configuration endpoints are only accessible to properly authenticated and authorized administrators.

Severity:

CRITICAL RISK

(9.8)

Authentication Bypass to Remote Code Execution (CWE-287/CWE-285) in FUXA SCADA Heartbeat API

CVE-2026-25893

Published:

Feb 9, 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:

Authentication Bypass / Broken Access Control

CWE:

CWE-285;CWE-287

Impact:

Remote Code Execution with Administrative Privileges

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Authentication Bypass / Broken Access Control

CWE:

CWE-285;CWE-287

Impact:

Remote Code Execution with Administrative Privileges

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Authentication Bypass to Remote Code Execution (CWE-287/CWE-285) in FUXA SCADA Heartbeat API

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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