ZDI-20-808: C-MORE HMI EA9 Control Port Missing Authentication for Critical Function Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of C-More HMI EA9 touch screen panels. Authentication is not required to exploit this vulnerability. The specific flaw exists within the control service, which listens on TCP port 9999 by default. The issue results from the lack of authentication prior to allowing alterations to the system configuration. An attacker can leverage this vulnerability to execute code in the context of the device.

Affected Software

1 affected component
C-MORE HMI EA9

Event History

Feb 23, 2026
Advisory Published
via ZDI·06:25 PM
Data Sourced
via ZDI·06:25 PM
DescriptionSeverityAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of ZDI-20-808?

The severity of ZDI-20-808 is critical due to its potential for remote code execution without authentication.

2

How do I fix ZDI-20-808?

To fix ZDI-20-808, it is recommended to update the C-More HMI EA9 firmware to the latest version provided by the vendor.

3

What systems are affected by ZDI-20-808?

ZDI-20-808 specifically affects C-More HMI EA9 touch screen panels.

4

Can ZDI-20-808 be exploited remotely?

Yes, ZDI-20-808 allows remote attackers to exploit the vulnerability without authentication.

5

What type of attack is possible with ZDI-20-808?

ZDI-20-808 allows remote attackers to execute arbitrary code on affected devices.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203