CVE-2022-48256 - Vulnerability Details - OpenCVE

Description

Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records.

Published: 2023-01-13

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:technitium:dns_server:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2022-50965	Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00708.

Exploitation none

Automatable yes

Technical Impact partial

References

Link	Providers
https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-100

History

Tue, 10 Nov 2026 21:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Technitium Dns Server

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-01-13T00:00:00.000Z

Updated: 2025-04-07T15:40:46.877Z

Reserved: 2023-01-13T00:00:00.000Z

Link: CVE-2022-48256

Vulnrichment

Updated: 2024-08-03T15:10:59.544Z

NVD

Status : Modified

Published: 2023-01-13T01:15:10.143

Modified: 2026-06-17T05:14:53.030

Link: CVE-2022-48256

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-835

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