CVE-2026-19386

Published Oct 7, 2026 CWE-121

Description

A 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.

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Weakness Type (CWE)

CWE-121 CWE-121

References

Frequently Asked Questions

What is CVE-2026-19386? +
A 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.
How do I check if I'm vulnerable to CVE-2026-19386? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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