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Unrated severityNVD Advisory· Published Jan 24, 2024· Updated Jun 20, 2025

CVE-2021-42146

CVE-2021-42146

Description

An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers allow remote attackers to reuse the same epoch number within two times the TCP maximum segment lifetime, which is prohibited in RFC6347. This vulnerability allows remote attackers to obtain sensitive application (data of connected clients).

Affected products

2
  • Contiki-NG/tinyDTLSdescription
  • Eclipse/Tinydtlsllm-fuzzy
    Range: <= master branch 53a0d97

Patches

Vulnerability mechanics

References

1

News mentions

0

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