system
Provide references for <CVE-2021-21280>.
user
Where can I find more information about <CVE-2021-21280>?
assistant
References are available at: https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-r768-hrhf-v592, https://github.com/contiki-ng/contiki-ng/pull/1409.