CVE-2021-45757: ASUS Rt-AC68U Firmware

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

ASUS AC68U <=3.0.0.4.385.20852 is affected by a buffer overflow in blocking.cgi, which may cause a denial of service (DoS).

Affected products

• ASUS Rt-AC68U Firmware: up to and including 3.0.0.4.385.20852

Published 2022-03-23. Last modified 2026-07-09.