CVE-2026-19386
Critical
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.
SeverityCritical
CVSS9.3
Exploit probability—
ProductRouter
PublishedOct 7, 2026
First seenOct 7, 2026
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ASUS Router | 3.0.0.6.102 series | — |
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