Totolink A8000ru Firmware

Totolink A8000RU 7.1cu.643 os Command Injection in /cgi-bin/cstecgi.cgi
CVE-2026-7538 9.8 - Critical - May 01, 2026

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function Vulnerability of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument proto leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

Shell injection

Totolink A8000RU 7.1cu.643 OS CMD Injection via CgiHandler setWiFiEasyGuestCfg
CVE-2026-7244 9.8 - Critical - April 28, 2026

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument merge results in os command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Shell injection

OS Cmd Injection in Totolink A8000RU 7.1cu CGI setRadvd(maxRtrAdvInterval)
CVE-2026-7243 9.8 - Critical - April 28, 2026

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument maxRtrAdvInterval leads to os command injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

Shell injection

Totolink A8000RU 7.1cu.643 CLI Command Injection via setOpenVpnClientCfg
CVE-2026-7242 9.8 - Critical - April 28, 2026

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnClientCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument enabled can lead to os command injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

Shell injection

Command injection in Totolink A8000RU CGI Handler (before 7.1cu.643_b20200521)
CVE-2026-7241 9.8 - Critical - April 28, 2026

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument wifiOff results in os command injection. The attack is possible to be carried out remotely. The exploit has been made public and could be used.

Shell injection

Command Injection in Totolink A8000RU 7.1cu.643 CGI Handler
CVE-2026-7240 9.8 - Critical - April 28, 2026

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument User leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.

Shell injection

OS Command Injection in Totolink A8000RU v7.1cu.643 CGI setPptpServerCfg
CVE-2026-7204 9.8 - Critical - April 28, 2026

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setPptpServerCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument enable causes os command injection. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Shell injection

OS Command Injection via setUrlFilterRules in Totolink A8000RU 7.1cu
CVE-2026-7203 9.8 - Critical - April 28, 2026

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument enable results in os command injection. The attack can be launched remotely. The exploit has been made public and could be used.

Shell injection

Totolink A8000RU 7.1cu.643 os command injection via CGI Handler wscDisabled
CVE-2026-7202 9.8 - Critical - April 27, 2026

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setWiFiWpsStart of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument wscDisabled leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Shell injection

OS Command Injection via HTTP Param in Totolink A8000RU 7.1cu.643 CGI Handler
CVE-2026-7156 9.8 - Critical - April 27, 2026

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument HTTP results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.

Shell injection

Totolink A8000RU 7.1cu.643 CGI Handler OSCI in setLoginPasswordCfg
CVE-2026-7155 9.8 - Critical - April 27, 2026

A security vulnerability has been detected in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setLoginPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument admpass leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.

Shell injection

Totolink A8000RU CGI Handler cmdinject via tty_server (7.1cu.643)
CVE-2026-7154 9.8 - Critical - April 27, 2026

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setAdvancedInfoShow of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument tty_server can lead to os command injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

Shell injection

Totolink A8000RU 7.1cu.643_b20200521 OS Command Injection via CGI Handler
CVE-2026-7153 9.8 - Critical - April 27, 2026

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setMiniuiHomeInfoShow of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument sys_info results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

Shell injection

OS Command Injection in Totolink A8000RU 7.1cu CGI Handler (setTelnetCfg)
CVE-2026-7152 9.8 - Critical - April 27, 2026

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument telnet_enabled leads to os command injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used.

Shell injection

Outdated Totolink A8000RU 7.1cu.643_b20200521 CGI Handler OS Cmd Injection
CVE-2026-7140 9.8 - Critical - April 27, 2026

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument HTTP leads to os command injection. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.

Shell injection

OS Command Injection in Totolink A8000RU 7.1cu CGI Handler
CVE-2026-7139 9.8 - Critical - April 27, 2026

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mode causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

Shell injection

Totolink A8000RU 7.1cu.643 os Cmd Injection in setNtpCfg TZ
CVE-2026-7138 9.8 - Critical - April 27, 2026

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setNtpCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument tz results in os command injection. The attack can be executed remotely. The exploit is now public and may be used.

Shell injection

Totolink A8000RU 7.1cu CGI Handler OS Command Injection
CVE-2026-7137 9.8 - Critical - April 27, 2026

A security vulnerability has been detected in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setStorageCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument sambaEnabled leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

Shell injection

Totolink A8000RU 7.1cu.643_b20200521 OS Command Injection via WANIdx in cstecgi.cgi
CVE-2026-7136 9.8 - Critical - April 27, 2026

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. Affected by this issue is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument wanIdx can lead to os command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.

Shell injection

Totolink A8000RU 7.1cu.643 CGI Handler cmd inject via merge
CVE-2026-7125 9.8 - Critical - April 27, 2026

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. Affected by this issue is the function setWiFiEasyCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument merge leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

Shell injection

OS command injection via CGI in Totolink A8000RU 7.1cu.643
CVE-2026-7124 9.8 - Critical - April 27, 2026

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. Affected by this vulnerability is the function setIpv6LanCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument addrPrefixLen can lead to os command injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Shell injection

OS Command Injection via CGI Handler in Totolink A8000RU 7.1cu.643
CVE-2026-7123 9.8 - Critical - April 27, 2026

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument setIptvCfg results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.

Shell injection

Totolink A8000RU 7.1cu.643 Remote Cmd Injection via setUPnPCfg CGI Handler
CVE-2026-7122 9.8 - Critical - April 27, 2026

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument enable leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Shell injection

OS Command Injection in Totolink A8000RU 7.1cu.643 CGI Handler
CVE-2026-7121 9.8 - Critical - April 27, 2026

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument wizard causes os command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used.

Shell injection

Totolink A8000RU 7.1cu OS Cmd Injn via setVpnPassCfg (pptpPassThru)
CVE-2026-7037 9.8 - Critical - April 26, 2026

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument pptpPassThru results in os command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

Shell injection

TOTOLINK A8000RU V7.1cu.643_B20200521 Login Bypass via Malicious Cookie
CVE-2024-28338 - March 12, 2024

A login bypass in TOTOLINK A8000RU V7.1cu.643_B20200521 allows attackers to login to Administrator accounts via providing a crafted session cookie.

TOTOLINK A8000RU v7.1cu Hardcoded Root Password in /etc/shadow
CVE-2024-24324 9.8 - Critical - January 30, 2024

TOTOLINK A8000RU v7.1cu.643_B20200521 was discovered to contain a hardcoded password for root stored in /etc/shadow.

Use of Hard-coded Credentials