Patchfirst
CVE-2026-19386 Critical · 9.3 EPSS 0.2%

A stack-based buffer overflow in the ASUS router modules allows an authenticated nearby user to execute arbitrary code…

ASUS · Router

Summary

A stack-based buffer overflow in the ASUS Router firmware's router modules lets an attacker execute arbitrary code by uploading a crafted configuration file that exceeds the expected buffer size. Exploitation requires that the attacker be an authenticated user located nearby on the network, with no user interaction needed.

Official description · NVD

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.

Breakdown
8.3 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Disclosed on 7 Oct 2026. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

References

1 link, grouped by NVD tag
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