Detections
Analytics

EulerOS Virtualization 2.10.1 : openssh (EulerOS-SA-2026-1135)

medium Nessus Plugin ID 297314

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

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

 ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code execution when a ProxyCommand is used.(CVE-2025-61985)

 ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)(CVE-2025-61984)

 A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high.(CVE-2025-26465)

 In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding.(CVE-2025-32728)

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

See Also

http://www.nessus.org/u?bc3b5d55

Plugin Details

Severity: Medium

ID: 297314

File Name: EulerOS_SA-2026-1135.nasl

Version: 1.1

Type: local

Published: 1/31/2026

Updated: 1/31/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

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

CVSS Score Source: CVE-2025-26465

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:openssh-server, p-cpe:/a:huawei:euleros:openssh, cpe:/o:huawei:euleros:uvp:2.10.1, p-cpe:/a:huawei:euleros:openssh-clients

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: 1/30/2026

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2025-26465, CVE-2025-32728, CVE-2025-61984, CVE-2025-61985

IAVA: 2025-A-0126-S, 2025-A-0258-S, 2025-A-0729-S, 2025-A-0806