CVE-2020-10920

Name: CVE-2020-10920
Creator: NVD / NIST
Published: 2020-07-23T16:15:12.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.92%

Last modified Jun 17, 2026

CVE-2020-10920 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. This vulnerability allows remote attackers to execute arbitrary code on affected installations of C-MORE HMI EA9 Firmware version 6.52 touch screen panels. Authentication is not required to exploit this vulnerability. EPSS estimates a 4.92% chance of exploitation in the next 30 days.

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of C-MORE HMI EA9 Firmware version 6.52 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. Was ZDI-CAN-10493.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

4.92%

91.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Automationdirect	C-More Hmi Ea9 Firmware	6.52

References

https://www.zerodayinitiative.com/advisories/ZDI-20-808/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-808/Third Party Advisory, VDB Entry

Timeline

Published: Jul 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10920?

How severe is CVE-2020-10920?

CVE-2020-10920 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.92% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10920?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10920?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST