CVE-2026-19386

Summary

CVECVE-2026-19386
StatePUBLISHED
AssignerASUS
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-07 02:16:57 UTC
Updated2026-10-08 04:17:19 UTC
DescriptionA stack-based buffer overflow in the ASUS router modules allows an authenticated nearby user to execute arbitrary code via a crafted configuration file upload that exceeds the expected buffer size.Refer to the ' Security Update for ASUS Router Firmware  ' section on the ASUS Security Advisory for more information.

Risk And Classification

Primary CVSS: v4.0 9.3 CRITICAL from 54bf65a7-a193-42d2-b1ba-8e150d3c35e1

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

EPSS: 0.001920000 probability, percentile 0.081210000 (date 2026-10-07)

Problem Types: CWE-121 | CWE-121 CWE-121: Stack-based Buffer Overflow


VersionSourceTypeScoreSeverityVector
4.054bf65a7-a193-42d2-b1ba-8e150d3c35e1Secondary9.3CRITICALCVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/C...
4.0CNACVSS9.3CRITICALCVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS v4.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
High
Sub Integrity
High
Sub Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA ASUS Router affected 3.0.0.6.102 series custom Not specified

References

ReferenceSourceLinkTags
www.asus.com/security-advisory 54bf65a7-a193-42d2-b1ba-8e150d3c35e1 www.asus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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