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EulerOS 2.0 SP13 : samba (EulerOS-SA-2026-2998)

critical Nessus Plugin ID 332922

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the 'check password script' feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper escaping of shell meta-characters. This vulnerability allows an attacker to achieve remote command execution on the affected system. This issue primarily affects non-standard configurations where the 'check password script' is used with %u and the samba-dcerpcd service is started as a system service.(CVE-2026-4408)

 A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description string to the command configured with the 'print command' setting via the '%J' substitution character without escaping shell meta characters. A remote attacker could exploit this vulnerability by sending a specially crafted print job description that contains unescaped shell characters. This could lead to remote code execution on the affected system.(CVE-2026-4480)

Tenable has extracted the preceding description block directly from the EulerOS samba security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected samba packages.

See Also

http://www.nessus.org/u?c70b9fee

Plugin Details

Severity: Critical

ID: 332922

File Name: EulerOS_SA-2026-2998.nasl

Version: 1.1

Type: Local

Published: 8/6/2026

Updated: 8/6/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 99.03

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-4480

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:libsmbclient, p-cpe:/a:huawei:euleros:libwbclient, p-cpe:/a:huawei:euleros:samba-client-libs, p-cpe:/a:huawei:euleros:samba-client, p-cpe:/a:huawei:euleros:samba-common-tools, p-cpe:/a:huawei:euleros:samba-common, p-cpe:/a:huawei:euleros:samba-help, p-cpe:/a:huawei:euleros:samba-libs, p-cpe:/a:huawei:euleros:samba-winbind-clients, p-cpe:/a:huawei:euleros:samba-winbind-modules, p-cpe:/a:huawei:euleros:samba-winbind, p-cpe:/a:huawei:euleros:samba

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/6/2026

Vulnerability Publication Date: 5/26/2026

Reference Information

CVE: CVE-2026-4408, CVE-2026-4480

IAVA: 2026-A-0510-S