VULNERABILITY INTELLIGENCE

CVE-2021-34430

CVSS score7.5 HIGH

EPSS probability1.04%

CISA KEVNot currently listed

Published2021-07-08

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

Eclipse TinyDTLS through 0.9-rc1 relies on the rand function in the C library, which makes it easier for remote attackers to compute the master key and then decrypt DTLS traffic.

Weakness classification

emo@eclipse.org: CWE-338
nvd@nist.gov: CWE-326

Primary references

emo@eclipse.org — Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory