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EulerOS 2.0 SP12 : libwebsockets (EulerOS-SA-2026-1074)

medium Nessus Plugin ID 284736

Synopsis

The remote EulerOS host is missing a security update.

Description

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

 Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attacker, in specific configurations where the user provides a callback function that handlesLWS_CALLBACK_HTTP_CONFIRM_UPGRADE, to achieve denial of service.(CVE-2025-11677)

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

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

Solution

Update the affected libwebsockets packages.

See Also

http://www.nessus.org/u?d7fe1180

Plugin Details

Severity: Medium

ID: 284736

File Name: EulerOS_SA-2026-1074.nasl

Version: 1.1

Type: local

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2025-11677

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:libwebsockets, cpe:/o:huawei:euleros:2.0

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: 1/13/2026

Vulnerability Publication Date: 10/20/2025

Reference Information

CVE: CVE-2025-11677