ASUS WRT-AC66U 3 RT 3.0.0.4.37267 devices allow XSS via the Client Name field to the Parental Control feature.

MainAnalysisContent.asp in /apply.cgi on ASUS RT-AC66U, RT-AC68U, RT-AC86U, RT-AC88U, RT-AC1900, RT-AC2900, and RT-AC3100 devices before 3.0.0.4.38410007; 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.

ASUS RT-AC51U, RT-AC58U, RT-AC66U, RT-AC1750, RT-ACRH13, and RT-N12 D1 routers with firmware before 3.0.0.4.380.8228; RT-AC52U B1, RT-AC1200 and RT-N600 routers with firmware before 3.0.0.4.380.10446; RT-AC55U and RT-AC55UHP routers with firmware before 3.0.0.4.382.50276; RT-AC86U and RT-AC2900 routers with firmware before 3.0.0.4.384.20648; and possibly other RT-series routers allow remote attackers to execute arbitrary code via unspecified vectors.

AdvancedSystemContent.asp in the ASUS RT series routers with firmware before 3.0.0.4.374.5517, when an administrator session is active, allows remote authenticated users to obtain the administrator user name and password by reading the source code.

Multiple buffer overflows in web.c in httpd on the ASUS RT-N56U and RT-AC66U routers with firmware 3.0.0.4.374979 allow remote attackers to execute arbitrary code via the (1) appsname or (2) appsflag parameter to APPInstallation.asp.

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.

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.

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

ASUS RT-N56U devices allow CSRF.

ASUS RT-AC68U, RT-AC66R, RT-AC66U, RT-AC56R, RT-AC56U, RT-N66R, RT-N66U, RT-N56R, RT-N56U, and possibly other RT-series routers before firmware 3.0.0.4.376.x do not verify the integrity of firmware (1) update information or (2) downloaded updates, which allows man-in-the-middle (MITM) attackers to execute arbitrary code via a crafted image.

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. An unauthenticated user can request /updateapplist.asp to see if a USB device is attached to the router and if there are apps installed on the router.

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. An unauthenticated user can trigger a DoS of the httpd service via the /APPInstallation.asp?= URI.

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. When processing the /startapply.htm POST data, there is a command injection issue via shell metacharacters in the fbemail parameter. By using this issue, an attacker can control the router and get shell.

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 catid.

ASUS RT-A88U 3.0.0.4.38645898 is vulnerable to Cross Site Scripting (XSS). The ASUS router admin panel does not sanitize the WiFI logs correctly, if an attacker was able to change the SSID of the router with a custom payload, they could achieve stored XSS on the device.