Detections
Analytics

Barco ClickShare Devices Improper Certificate Validation (CVE-2019-18826)

critical Tenable OT Security Plugin ID 503362

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Barco ClickShare Button R9861500D01 devices before 1.9.0 have Improper Following of a Certificate's Chain of Trust. The embedded 'dongle_bridge' program used to expose the functionalities of the ClickShare Button to a USB host, does not properly validate the whole certificate chain.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

https://www.barco.com/en/clickshare/firmware-update

Plugin Details

Severity: Critical

ID: 503362

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 10/9/2025

Updated: 10/9/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-18826

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/o:barco:clickshare_cse-200_firmware, cpe:/o:barco:clickshare_cs-100_firmware, cpe:/o:barco:clickshare_cse-200%2b_firmware, cpe:/o:barco:clickshare_cse-800_firmware

Required KB Items: Tenable.ot/Barco

Exploit Ease: No known exploits are available

Patch Publication Date: 12/16/2019

Vulnerability Publication Date: 12/16/2019

Reference Information

CVE: CVE-2019-18826

CWE: 295