CVE-2023-42670

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

A flaw was found in Samba. It is susceptible to a vulnerability where multiple incompatible RPC listeners can be initiated, causing disruptions in the AD DC service. When Samba's RPC server experiences a high load or unresponsiveness, servers intended for non-AD DC purposes (for example, NT4-emulation "classic DCs") can erroneously start and compete for the same unix domain sockets. This issue leads to partial query responses from the AD DC, causing issues such as "The procedure number is out of range" when using tools like Active Directory Users. This flaw allows an attacker to disrupt AD DC services.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published
Nov 3, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-42670: Medium severity, CVSS 6.5 | Vulnix