CVE-2021-42145: Contiki-NG Tinydtls

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An assertion failure discovered in in check_certificate_request() in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers to cause a denial of service.

Affected products

• Contiki-NG Tinydtls: up to and including 2018-08-30

Published 2024-01-24. Last modified 2026-06-17.