Stack-Based Buffer Overflow in ASUS Router Modules
CVE-2026-19386

9.3CRITICAL

Key Information:

Vendor

Asus
Status
Router
Vendor
CVE Published:
7 October 2026

What is CVE-2026-19386?

A stack-based buffer overflow vulnerability exists within ASUS router modules, enabling an authenticated nearby user to upload a specially crafted configuration file. This file can exceed the expected buffer size, potentially leading to the execution of arbitrary code. For more information, please refer to ASUS's Security Advisory, which outlines necessary security updates and guidance for mitigating risks associated with this vulnerability.

Affected Version(s)

Router 3.0.0.6.102 series

References

https://www.asus.com/security-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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