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CVE-2021-42142

CRITICAL CVSS: 9.8 Published: 2024-01-23 Modified: 2026-06-17

Description

An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops.

Affected Platforms

Contiki-Ng Tinydtls

Weakness Type

CWE-755, CWE-770

References