Provide references for CVE-2019-18231.
Where can I find more information about CVE-2019-18231?
References are available at: https://us-cert.cisa.gov/ics/advisories/icsa-21-054-03, https://ep.advantech-bb.cz/support/router-models/download/511/sa-2021-01-fw-5.1.3-and-older-en.pdf.