Provide references for CVE-2021-27488.
Where can I find more information about CVE-2021-27488?
References are available at: https://www.zerodayinitiative.com/advisories/ZDI-21-563/, https://cert-portal.siemens.com/productcert/pdf/ssa-119468.pdf, https://us-cert.cisa.gov/ics/advisories/icsa-21-145-01.