---
id: CVE-2026-35869
title: >-
  A Command Injection vulnerability exists in the bs_SetLimitCli_info function
  within the libshare.so library of LB-link Router AC450M V4.0.0
summary: >-
  A Command Injection vulnerability exists in the bs_SetLimitCli_info function
  within the libshare.so library of LB-link Router AC450M V4.0.0. This flaw
  occurs due to insufficient validation and sanitization of user-supplied input
  before i…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-20
published: '2026-08-27'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:29:09.680'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-35869'
references:
  - url: >-
      https://github.com/Orcust-Automaton/Vulnerability/blob/main/LB-Link/AC450M/bs_SetLimitCli_info.md
    label: cve@mitre.org
tags:
  - nvd
epss: 0.01335
epssPercentile: 0.6998
ingestedAt: '2026-09-08T20:10:03.158Z'
---

## Overview

A Command Injection vulnerability exists in the bs_SetLimitCli_info function within the libshare.so library of LB-link Router AC450M V4.0.0. This flaw occurs due to insufficient validation and sanitization of user-supplied input before it is passed to a system-level command execution context. An attacker can exploit this vulnerability by injecting specially crafted shell metacharacters or payloads into the vulnerable parameter, resulting in the execution of arbitrary operating system commands.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.