Buffer overflow in ASUS Router

CVE-2026-17518

Buffer Copy without Checking Size of Input in certain ASUS router models allows an adjacent authenticated user to corrupt device operations and cause a denial of service via an HTTP request with input exceeding the expected length. Refer to the ' Security Update for ASUS Router Firmware' section on the ASUS Security Advisory for more information.

Vulnerability class: Buffer Overflow

Published .

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

  • ASUS Router — versions ASUSWRT 3.0.0.4_386 series, ASUSWRT 3.0.0.4_388 series

Weakness classification (CWE)

References