CVE-2021-43105
MEDIUM
4.3
CVSS Score
Published: March 28, 2022 at 10:02 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorDNS Server
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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 7.0
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.mdCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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