VYPR
← All advisories
High severity7.5NVD Advisory· Published Jan 24, 2024· Updated Jun 17, 2026

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

3
  • Xwiki Contrib/tinyDTLS2 versions
    cpe:2.3:a:contiki-ng:tinydtls:2018-08-30:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:contiki-ng:tinydtls:2018-08-30:*:*:*:*:*:*:*
    • (no CPE)range: <=53a0d97
  • Contiki-NG/tinyDTLSdescription

Patches

Vulnerability mechanics

References

2

News mentions

0

No linked articles in our index yet.