Is this vulnerability remotely exploitable over the internet?

Yes, if the MajorDoMo admin interface is exposed to the internet or any untrusted network, an attacker can send crafted HTTP requests to the vulnerable endpoint and trigger remote code execution without valid credentials.

Does exploitation require valid admin credentials or local access?

No. The flaw exists specifically because authentication checks are bypassed due to the include order bug and missing exit after redirect, allowing unauthenticated requests to reach the eval-based console handler.

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

The safest pattern is to remove or redesign any feature that executes user-controlled input as code. Replace eval-based consoles with whitelisted, parameter-driven actions, ensure authentication and authorization are enforced before handlers run, and terminate execution after security-related redirects.

Severity:

CRITICAL RISK

(9.8)

Code Injection via Unsafe eval (CWE-94) in MajorDoMo Admin PHP Console

CVE-2026-27174

Published:

Feb 18, 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-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:

Code Injection

CWE:

CWE-94

Impact:

Unauthenticated Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Code Injection

CWE:

CWE-94

Impact:

Unauthenticated Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Code Injection via Unsafe eval (CWE-94) in MajorDoMo Admin PHP Console

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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