Detections
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EulerOS Virtualization 2.10.0 : kernel (EulerOS-SA-2026-3863)

high Nessus Plugin ID 348523

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

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

 A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted request_key payload to trick the root-owned helper into entering a custom environment (namespace) containing a malicious NSS module. This forces the system to load the attacker's controlled NSS Module and configuration, allowing them to execute arbitrary commands as the root user, elevating their privileges and fully compromising the system.(CVE-2026-12505)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization kernel 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 kernel packages.

See Also

http://www.nessus.org/u?87f194e5

Plugin Details

Severity: High

ID: 348523

File Name: EulerOS_SA-2026-3863.nasl

Version: 1.1

Type: Local

Published: 9/21/2026

Updated: 9/21/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.5

Percentile: 99.87

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

CVSS Score Source: CVE-2026-46294

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: cpe:/o:huawei:euleros:uvp:2.10.0, p-cpe:/a:huawei:euleros:bpftool, p-cpe:/a:huawei:euleros:kernel-abi-stablelists, p-cpe:/a:huawei:euleros:kernel-tools-libs-devel, p-cpe:/a:huawei:euleros:kernel-tools-libs, p-cpe:/a:huawei:euleros:kernel-tools, p-cpe:/a:huawei:euleros:kernel, p-cpe:/a:huawei:euleros:perf, p-cpe:/a:huawei:euleros:python3-perf

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/21/2026

Vulnerability Publication Date: 3/12/2026

Reference Information

CVE: CVE-2026-31662, CVE-2026-43093, CVE-2026-43139, CVE-2026-43158, CVE-2026-43190, CVE-2026-43194, CVE-2026-43339, CVE-2026-43450, CVE-2026-43452, CVE-2026-43499, CVE-2026-45840, CVE-2026-45843, CVE-2026-45852, CVE-2026-45856, CVE-2026-46021, CVE-2026-46023, CVE-2026-46033, CVE-2026-46052, CVE-2026-46133, CVE-2026-46177, CVE-2026-46189, CVE-2026-46209, CVE-2026-46227, CVE-2026-46259, CVE-2026-46294, CVE-2026-46320, CVE-2026-46321, CVE-2026-46322, CVE-2026-46331, CVE-2026-52923, CVE-2026-53163, CVE-2026-53176, CVE-2026-53194