CVE-2021-43105

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CVSS 3.1

4.3 medium

EPSS

<1%p48

Published

Mar 28, 2022 (Mar 28, 2022)

Modified

Jun 17, 2026

Description

A vulnerability in the bailiwick checking function in Technitium DNS Server <= v7.0 exists that allows specific malicious users to inject `NS` records of any domain (even TLDs) into the cache and conduct a DNS cache poisoning attack.

Vendors: technitium
Products: dns server
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.6%)

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