Unrated severityNVD Advisory· Published Jan 22, 2024· Updated Jun 20, 2025

CVE-2021-42141

Description

An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. One incorrect handshake could complete with different epoch numbers in the packets Client_Hello, Client_key_exchange, and Change_cipher_spec, which may cause denial of service.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Contiki-NG/tinyDTLSdescription
Eclipse/Tinydtlsllm-fuzzy
Range: <=2018-08-30

Patches

Vulnerability mechanics

References

packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.htmlmitre
github.com/contiki-ng/tinydtls/issues/27mitre
seclists.org/fulldisclosure/2024/Jan/14mitre

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