ASUS RT-AC66U Router Firmware any version

Buffer overflow in Broadcom ACSD allows remote attackers to execute arbitrary code via a long string to TCP port 5916. This component is used on routers of multiple vendors including ASUS RT-AC66U and TRENDnet TEW-812DRU.

Main_Analysis_Content.asp in /apply.cgi on ASUS RT-AC66U, RT-AC68U, RT-AC86U, RT-AC88U, RT-AC1900, RT-AC2900, and RT-AC3100 devices before 3.0.0.4.384_10007; RT-N18U devices before 3.0.0.4.382.39935; RT-AC87U and RT-AC3200 devices before 3.0.0.4.382.50010; and RT-AC5300 devices before 3.0.0.4.384.20287 allows OS command injection via the pingCNT and destIP fields of the SystemCmd variable.

Symlink Traversal vulnerability in ASUS RT-AC66U and RT-N56U due to misconfiguration in the SMB service.

Multiple unspecified vulnerabilities in the AiCloud feature on the ASUS RT-AC66U, RT-N66U, RT-N65U, RT-N14U, RT-N16, RT-N56U, and DSL-N55U with firmware before 3.0.4.372 have unknown impact and attack vectors.

Stack-based buffer overflow in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to execute arbitrary code by providing a long string to the blocking.asp page via a GET or POST request. Vulnerable parameters are flag, mac, and cat_id.