CVE-2019-18826 — Barco ClickShare Button R9861500D01 devices before 1

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

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-12-16T16:13:09.000Z
• Last modified: 2024-08-05T02:02:39.559Z

09References

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