---
id: CVE-2026-84729
title: "Out-of-bounds write in certain ASUS Router firmware allow an unauthenticated nearby attacker to write data beyond the intended buffer or potentially cause a denial-of-service (DoS) via a crafted packet.\nRefer to the '\_\nSecurity Update fo…"
summary: "Out-of-bounds write in certain ASUS Router firmware allow an unauthenticated nearby attacker to write data beyond the intended buffer or potentially cause a denial-of-service (DoS) via a crafted packet.\nRefer to the '\_\nSecurity Update fo…"
severity: high
cvss: 7.2
cvssVector: 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-787
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: partial
  timestamp: '2026-11-04T14:54:12.410584Z'
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T15:18:57.588Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-84729'
references:
  - url: 'https://www.asus.com/security-advisory'
tags:
  - cve.org
epss: 0.00166
epssPercentile: 0.05846
ingestedAt: '2026-11-05T21:36:00.435Z'
---

## Overview

Out-of-bounds write in certain ASUS Router firmware allow an unauthenticated nearby attacker to write data beyond the intended buffer or potentially cause a denial-of-service (DoS) via a crafted packet.
Refer to the ' 
Security Update for ASUS Router Firmware  ' 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.