Critical severity9.8NVD Advisory· Published Jan 22, 2024· Updated Jun 17, 2026
CVE-2021-42141
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
3cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:*range: <=2018-08-30
- (no CPE)
- (no CPE)range: <=2018-08-30
Patches
Vulnerability mechanics
References
4- github.com/contiki-ng/tinydtls/issues/27nvdPatch
- packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.htmlnvdThird Party AdvisoryVDB Entry
- seclists.org/fulldisclosure/2024/Jan/14nvdMailing ListThird Party Advisory
- seclists.org/fulldisclosure/2024/Jan/14nvd
News mentions
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