---
id: CVE-2026-84730
title: >-
  Stack-based buffer overflow in certain ASUS Router firmware allows an
  unauthenticated nearby attacker to execute arbitrary commands with root
  privileges via a crafted device name.

  Refer to the '

  Security Update for ASUS Router AiCloud Fe…
summary: >-
  Stack-based buffer overflow in certain ASUS Router firmware allows an
  unauthenticated nearby attacker to execute arbitrary commands with root
  privileges via a crafted device name.

  Refer to the '

  Security Update for ASUS Router AiCloud Fe…
severity: high
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-121
vendor: ASUS
product: Router firmware
affected:
  - router_firmware ASUSWRT 3.0.0.4_386 series
  - router_firmware ASUSWRT 3.0.0.4_388 series
  - router_firmware ASUSWRT 3.0.0.6_102 series
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-04T00:00:00+00:00'
published: '2026-11-04'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T04:56:44.571Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-84730'
references:
  - url: 'https://www.asus.com/security-advisory'
tags:
  - cve.org
epss: 0.00343
epssPercentile: 0.28013
ingestedAt: '2026-11-05T21:36:00.769Z'
---

## Overview

Stack-based buffer overflow in certain ASUS Router firmware allows an unauthenticated nearby attacker to execute arbitrary commands with root privileges via a crafted device name.
Refer to the '
Security Update for ASUS Router AiCloud Feature ' section on the ASUS Security Advisory for more information.

## Affected

- `router_firmware ASUSWRT 3.0.0.4_386 series`
- `router_firmware ASUSWRT 3.0.0.4_388 series`
- `router_firmware ASUSWRT 3.0.0.6_102 series`

## Remediation

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