EulerOS 2.0 SP12 : dracut (EulerOS-SA-2026-4400)

high Nessus Plugin ID 376722

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

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

A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling.(CVE-2026-15816)

A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP options, such as a malicious root-path, next-server, or bootfile name, to a system using dracut's NetworkManager-based initrd network module. These options are improperly handled and written into a temporary shell script without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs during system boot.(CVE-2026-16445)

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

Plugin Details

Severity: High

ID: 376722

File Name: EulerOS_SA-2026-4400.nasl

Version: 1.1

Type: Local

Family: Huawei Local Security Checks

Published: 11/6/2026

Updated: 11/6/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.36

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-16445

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:dracut-caps, p-cpe:/a:huawei:euleros:dracut-config-generic, p-cpe:/a:huawei:euleros:dracut-config-rescue, p-cpe:/a:huawei:euleros:dracut-live, p-cpe:/a:huawei:euleros:dracut-network, p-cpe:/a:huawei:euleros:dracut-squash, p-cpe:/a:huawei:euleros:dracut-tools, p-cpe:/a:huawei:euleros:dracut

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 Ease: No known exploits are available

Patch Publication Date: 11/5/2026

Vulnerability Publication Date: 7/21/2026

Reference Information

CVE: CVE-2026-15816, CVE-2026-16445

Detections

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