AUGUST 4, 2026
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Case File

CVE-2023-42670

MEDIUM · CVSS 6.5 EPSS 1.10%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-11-03 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. See the original NVD description below for full technical details.

CVE
CVE-2023-42670
Severity
MEDIUM
CVSS
6.5
EPSS
1.10%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)