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Medium severity4.3NVD Advisory· Published Mar 28, 2022· Updated Jun 17, 2026

CVE-2021-43105

CVE-2021-43105

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Technitium/Dnsserver3 versions
    cpe:2.3:a:technitium:dns_server:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:technitium:dns_server:*:*:*:*:*:*:*:*range: <=7.0
    • (no CPE)
    • (no CPE)range: <=7.0

Patches

Vulnerability mechanics

References

1

News mentions

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