Critical severity9.8NVD Advisory· Published Jan 23, 2024· Updated Jun 17, 2026
CVE-2021-42142
CVE-2021-42142
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.
AI Insight
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: <=53a0d97
Patches
Vulnerability mechanics
References
3- github.com/contiki-ng/tinydtls/issues/24nvdIssue TrackingPatch
- seclists.org/fulldisclosure/2024/Jan/15nvdMailing ListThird Party Advisory
- seclists.org/fulldisclosure/2024/Jan/15nvd
News mentions
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