Is this vulnerability remotely exploitable beyond the local network?

It can be, if the PLC or its controlling device is reachable from external networks (e.g., via VPN, remote access gateways, or misconfigured firewall rules). If exposure is limited to a tightly segmented OT network, the scope is narrower but still serious.

What level of access does an attacker need?

The attacker generally needs only network connectivity to the PLC interface; no valid credentials or prior foothold on the device are required when authentication is absent.

What is the safest general fix pattern for this issue?

Introduce mandatory authentication and authorization for all PLC control and configuration operations, combined with network segmentation that restricts who can even attempt to connect, and ensure that remote-control features are disabled by default unless needed and governed.

Severity:

HIGH RISK

(8.2)

Missing Authentication (CWE-306) for Remote PLC Control in Industrial Device

CVE-2026-24790

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:

Missing Authentication

CWE:

CWE-306

Impact:

Unauthorized Remote Control of PLC Operations

Severity:

HIGH RISK

(8.2)

CVSS Version:

3.1

Vulnerability Type

Category:

Missing Authentication

CWE:

CWE-306

Impact:

Unauthorized Remote Control of PLC Operations

Severity:

HIGH RISK

(8.2)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Missing Authentication (CWE-306) for Remote PLC Control in Industrial Device

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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