CVE-2021-34430

HIGH

Eclipse TinyDTLS through 0.9-rc1 - Inadequate Encryption Strength via C Library rand Function

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Exploit, Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568803

Scores

CVSS v3 7.5
EPSS 0.0104
EPSS Percentile 59.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-326 CWE-338
Status published
Products (2)
eclipse/tinydtls 0.9 rc1
eclipse/tinydtls < 0.8.2
Published Jul 08, 2021
Tracked Since Feb 18, 2026