VULNERABILITY INTELLIGENCE

CVE-2021-43105

CVSS score4.3 MEDIUM
EPSS probability0.54%
CISA KEVNot currently listed
Published2022-03-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references