CVE-2026-84729
Full vulnerability record from the local CVENow database.
Description
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.
Severity
HIGH
CVSS score
7.2
(v4.0)
Vulnerability status
Received
Source identifier
54bf65a7-a193-42d2-b1ba-8e150d3c35e1
Published
2026-11-04 02:17:21.163000
Last modified
2026-11-04 02:17:21.163000
View original CVE JSON
{
"id": "CVE-2026-84729",
"sourceIdentifier": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
"published": "2026-11-04T02:17:21.163",
"lastModified": "2026-11-04T02:17:21.163",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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 for ASUS Router Firmware ' section on the ASUS Security Advisory for more information."
}
],
"affected": [
{
"source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
"affectedData": [
{
"vendor": "ASUS",
"product": "Router firmware",
"defaultStatus": "unaffected",
"versions": [
{
"version": "ASUSWRT 3.0.0.4_386 series",
"versionType": "custom",
"status": "affected"
},
{
"version": "ASUSWRT 3.0.0.4_388 series",
"versionType": "custom",
"status": "affected"
},
{
"version": "ASUSWRT 3.0.0.6_102 series",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"attackVector": "ADJACENT",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
]
},
"weaknesses": [
{
"source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
}
],
"references": [
{
"url": "https://www.asus.com/security-advisory",
"source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1"
}
]
}