CVE-2020-25110

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The length byte of a domain name in a DNS query/response is not checked, and is used for internal memory operations. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-125

Affected software

No affected versions have been published.

Timeline

Published
Dec 11, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

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CVE-2020-25110: Critical severity, CVSS 9.8 | Vulnix