TOTOLINK X5000R v9.1.0cu2415B20250515 contains an argument injection vulnerability in the setDiagnosisCfg handler of the /usr/sbin/lighttpd executable. The ip parameter is retrieved via websGetVar and passed to a ping command through CsteSystem without validating if the input starts with a hyphen (-). This allows remote authenticated attackers to inject arbitrary command-line options into the ping utility, potentially leading to a Denial of Service (DoS) by causing excessive resource consumption or prolonged execution.

A vulnerability was determined in TOTOLINK X5000R 9.1.0cu.2089B20211224. Affected by this issue is the function snprintf of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user. This manipulation of the argument User causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

Unauthenticated Telnet enablement via cstecgi.cgi (auth bypass) leading to unauthenticated root login with a blank password on factory/reset X5000R V9.1.0u.6369B20230113 (arbitrary command execution). Earlier versions that share the same implementation, may also be affected.

A vulnerability was found in TOTOLINK X5000R 9.1.0cu.2415B20250515. This affects the function sub410C34 of the file /cgi-bin/cstecgi.cgi. Performing manipulation of the argument pid results in command injection. Remote exploitation of the attack is possible. The exploit has been made public and could be used.

TOTOLINK X5000R V9.1.0cu.2350B20230313 was discovered to contain a command injection via the setWanCfg function.

TOTOLINK X5000R V9.1.0u.6118B20201102 and V9.1.0u.6369B20230113 contains a command insertion vulnerability in setDiagnosisCfg.This vulnerability allows an attacker to execute arbitrary commands through the "ip" parameter.

TOTOLINK X5000R V9.1.0u.6118B20201102 and V9.1.0u.6369B20230113 contain a command insertion vulnerability in setOpModeCfg. This vulnerability allows an attacker to execute arbitrary commands through the "hostName" parameter.