AUGUST 4, 2026
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Case File

CVE-2021-42147

CRITICAL · CVSS 9.1 EPSS 0.84%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-01-24 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2021-42147
Severity
CRITICAL
CVSS
9.1
EPSS
0.84%

Original NVD Description

Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote attackers to cause a denial of service via crafted data packet.

Related CVEs

Other vulnerabilities affecting the same vendor(s)